how do you write a bibliography or references

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How To Write a Bibliography (Three Styles, Plus Examples)

Give credit where credit is due.

Writing a research paper involves a lot of work. Students need to consult a variety of sources to gather reliable information and ensure their points are well supported. Research papers include a bibliography, which can be a little tricky for students. Learn how to write a bibliography in multiple styles and find basic examples below.

IMPORTANT: Each style guide has its own very specific rules, and they often conflict with one another. Additionally, each type of reference material has many possible formats, depending on a variety of factors. The overviews shown here are meant to guide students in writing basic bibliographies, but this information is by no means complete. Students should always refer directly to the preferred style guide to ensure they’re using the most up-to-date formats and styles.

What is a bibliography?

When you’re researching a paper, you’ll likely consult a wide variety of sources. You may quote some of these directly in your work, summarize some of the points they make, or simply use them to further the knowledge you need to write your paper. Since these ideas are not your own, it’s vital to give credit to the authors who originally wrote them. This list of sources, organized alphabetically, is called a bibliography.

A bibliography should include all the materials you consulted in your research, even if you don’t quote directly from them in your paper. These resources could include (but aren’t limited to):

• Books and e-books
• Periodicals like magazines or newspapers
• Online articles or websites
• Primary source documents like letters or official records

Bibliography vs. References

These two terms are sometimes used interchangeably, but they actually have different meanings. As noted above, a bibliography includes all the materials you used while researching your paper, whether or not you quote from them or refer to them directly in your writing.

A list of references only includes the materials you cite throughout your work. You might use direct quotes or summarize the information for the reader. Either way, you must ensure you give credit to the original author or document. This section can be titled “List of Works Cited” or simply “References.”

Your teacher may specify whether you should include a bibliography or a reference list. If they don’t, consider choosing a bibliography, to show all the works you used in researching your paper. This can help the reader see that your points are well supported, and allow them to do further reading on their own if they’re interested.

Bibliography vs. Citations

Citations refer to direct quotations from a text, woven into your own writing. There are a variety of ways to write citations, including footnotes and endnotes. These are generally shorter than the entries in a reference list or bibliography. Learn more about writing citations here.

What does a bibliography entry include?

Depending on the reference material, bibliography entries include a variety of information intended to help a reader locate the material if they want to refer to it themselves. These entries are listed in alphabetical order, and may include:

• Author/s or creator/s
• Publication date
• Volume and issue numbers
• Publisher and publication city
• Website URL

These entries don’t generally need to include specific page numbers or locations within the work (except for print magazine or journal articles). That type of information is usually only needed in a footnote or endnote citation.

What are the different bibliography styles?

In most cases, writers use one of three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style . There are many others as well, but these three are the most common choices for K–12 students.

Many teachers will state their preference for one style guide over another. If they don’t, you can choose your own preferred style. However, you should also use that guide for your entire paper, following their recommendations for punctuation, grammar, and more. This will ensure you are consistent throughout.

Below, you’ll learn how to write a simple bibliography using each of the three major style guides. We’ve included details for books and e-books, periodicals, and electronic sources like websites and videos. If the reference material type you need to include isn’t shown here, refer directly to the style guide you’re using.

APA Style Bibliography and Examples

Source: Verywell Mind

Technically, APA style calls for a list of references instead of a bibliography. If your teacher requires you to use the APA style guide , you can limit your reference list only to items you cite throughout your work.

How To Write a Bibliography (References) Using APA Style

Here are some general notes on writing an APA reference list:

• Title your bibliography section “References” and center the title on the top line of the page.
• Do not center your references; they should be left-aligned. For longer items, subsequent lines should use a hanging indent of 1/2 inch.
• Include all types of resources in the same list.
• Alphabetize your list by author or creator, last name first.
• Do not spell out the author/creator’s first or middle name; only use their initials.
• If there are multiple authors/creators, use an ampersand (&) before the final author/creator.
• Place the date in parentheses.
• Capitalize only the first word of the title and subtitle, unless the word would otherwise be capitalized (proper names, etc.).
• Italicize the titles of books, periodicals, or videos.
• For websites, include the full site information, including the http:// or https:// at the beginning.

Books and E-Books APA Bibliography Examples

For books, APA reference list entries use this format (only include the publisher’s website for e-books).

Last Name, First Initial. Middle Initial. (Publication date). Title with only first word capitalized . Publisher. Publisher’s website

• Wynn, S. (2020). City of London at war 1939–45 . Pen & Sword Military. https://www.pen-and-sword.co.uk/City-of-London-at-War-193945-Paperback/p/17299

Periodical APA Bibliography Examples

For journal or magazine articles, use this format. If you viewed the article online, include the URL at the end of the citation.

Last Name, First Initial. Middle Initial. (Publication date). Title of article. Magazine or Journal Title (Volume number) Issue number, page numbers. URL

• Bell, A. (2009). Landscapes of fear: Wartime London, 1939–1945. Journal of British Studies (48) 1, 153–175. https://www.jstor.org/stable/25482966

Here’s the format for newspapers. For print editions, include the page number/s. For online articles, include the full URL.

Last Name, First Initial. Middle Initial. (Year, Month Date) Title of article. Newspaper title. Page number/s. URL

• Blakemore, E. (2022, November 12) Researchers track down two copies of fossil destroyed by the Nazis.  The Washington Post. https://www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/

Electronic APA Bibliography Examples

For articles with a specific author on a website, use this format.

Last Name, First Initial. Middle Initial. (Year, Month Date). Title . Site name. URL

• Wukovits, J. (2023, January 30). A World War II survivor recalls the London Blitz . British Heritage . https://britishheritage.com/history/world-war-ii-survivor-london-blitz

When an online article doesn’t include a specific author or date, list it like this:

Title . (Year, Month Date). Site name. Retrieved Month Date, Year, from URL

• Growing up in the Second World War . (n.d.). Imperial War Museums. Retrieved May 12, 2023, from https://www.iwm.org.uk/history/growing-up-in-the-second-world-war

When you need to list a YouTube video, use the name of the account that uploaded the video, and format it like this:

Name of Account. (Upload year, month day). Title [Video]. YouTube. URL

• War Stories. (2023, January 15). How did London survive the Blitz during WW2? | Cities at war: London | War stories [Video]. YouTube. https://youtu.be/uwY6JlCvbxc

For more information on writing APA bibliographies, see the APA Style Guide website.

APA Bibliography (Reference List) Example Pages

Source: Simply Psychology

More APA example pages:

• Western Australia Library Services APA References Example Page
• Ancilla College APA References Page Example
• Scribbr APA References Page Example

MLA Style Bibliography Examples

Source: PressBooks

MLA style calls for a Works Cited section, which includes all materials quoted or referred to in your paper. You may also include a Works Consulted section, including other reference sources you reviewed but didn’t directly cite. Together, these constitute a bibliography. If your teacher requests an MLA Style Guide bibliography, ask if you should include Works Consulted as well as Works Cited.

How To Write a Bibliography (Works Cited and Works Consulted) in MLA Style

For both MLA Works Cited and Works Consulted sections, use these general guidelines:

• Start your Works Cited list on a new page. If you include a Works Consulted list, start that on its own new page after the Works Cited section.
• Center the title (Works Cited or Works Consulted) in the middle of the line at the top of the page.
• Align the start of each source to the left margin, and use a hanging indent (1/2 inch) for the following lines of each source.
• Alphabetize your sources using the first word of the citation, usually the author’s last name.
• Include the author’s full name as listed, last name first.
• Capitalize titles using the standard MLA format.
• Leave off the http:// or https:// at the beginning of a URL.

Books and E-Books MLA Bibliography Examples

For books, MLA reference list entries use this format. Add the URL at the end for e-books.

Last Name, First Name Middle Name. Title . Publisher, Date. URL

• Wynn, Stephen. City of London at War 1939–45 . Pen & Sword Military, 2020. www.pen-and-sword.co.uk/City-of-London-at-War-193945-Paperback/p/17299

Periodical MLA Bibliography Examples

Here’s the style format for magazines, journals, and newspapers. For online articles, add the URL at the end of the listing.

For magazines and journals:

Last Name, First Name. “Title: Subtitle.” Name of Journal , volume number, issue number, Date of Publication, First Page Number–Last Page Number.

• Bell, Amy. “Landscapes of Fear: Wartime London, 1939–1945.” Journal of British Studies , vol. 48, no. 1, pp. 153–175. www.jstor.org/stable/25482966

When citing newspapers, include the page number/s for print editions or the URL for online articles.

Last Name, First Name. “Title of article.” Newspaper title. Page number/s. Year, month day. Page number or URL

• Blakemore, Erin. “Researchers Track Down Two Copies of Fossil Destroyed by the Nazis.” The Washington Post. 2022, Nov. 12. www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/

Electronic MLA Bibliography Examples

Last Name, First Name. Year. “Title.” Month Day, Year published. URL

• Wukovits, John. 2023. “A World War II Survivor Recalls the London Blitz.” January 30,   2023. https://britishheritage.com/history/world-war-ii-survivor-london-blitz

Website. n.d. “Title.” Accessed Day Month Year. URL.

• Imperial War Museum. n.d. “Growing Up in the Second World War.” Accessed May 9, 2023. https://www.iwm.org.uk/history/growing-up-in-the-second-world-war.

Here’s how to list YouTube and other online videos.

Creator, if available. “Title of Video.” Website. Uploaded by Username, Day Month Year. URL.

• “How did London survive the Blitz during WW2? | Cities at war: London | War stories.” YouTube . Uploaded by War Stories, 15 Jan. 2023. youtu.be/uwY6JlCvbxc.

For more information on writing MLA style bibliographies, see the MLA Style website.

MLA Bibliography (Works Cited) Example Pages

Source: The Visual Communication Guy

More MLA example pages:

• Writing Commons Sample Works Cited Page
• Scribbr MLA Works Cited Sample Page
• Montana State University MLA Works Cited Page

Chicago Manual of Style Bibliography Examples

The Chicago Manual of Style (sometimes called “Turabian”) actually has two options for citing reference material : Notes and Bibliography and Author-Date. Regardless of which you use, you’ll need a complete detailed list of reference items at the end of your paper. The examples below demonstrate how to write that list.

How To Write a Bibliography Using The Chicago Manual of Style

Source: South Texas College

Here are some general notes on writing a Chicago -style bibliography:

• You may title it “Bibliography” or “References.” Center this title at the top of the page and add two blank lines before the first entry.
• Left-align each entry, with a hanging half-inch indent for subsequent lines of each entry.
• Single-space each entry, with a blank line between entries.
• Include the “http://” or “https://” at the beginning of URLs.

Books and E-Books Chicago Manual of Style Bibliography Examples

For books, Chicago -style reference list entries use this format. (For print books, leave off the information about how the book was accessed.)

Last Name, First Name Middle Name. Title . City of Publication: Publisher, Date. How e-book was accessed.

• Wynn, Stephen. City of London at War 1939–45 . Yorkshire: Pen & Sword Military, 2020. Kindle edition.

Periodical Chicago Manual of Style Bibliography Examples

For journal and magazine articles, use this format.

Last Name, First Name. Year of Publication. “Title: Subtitle.” Name of Journal , Volume Number, issue number, First Page Number–Last Page Number. URL.

• Bell, Amy. 2009. “Landscapes of Fear: Wartime London, 1939–1945.” Journal of British Studies, 48 no. 1, 153–175. https://www.jstor.org/stable/25482966.

When citing newspapers, include the URL for online articles.

Last Name, First Name. Year of Publication. “Title: Subtitle.” Name of Newspaper , Month day, year. URL.

• Blakemore, Erin. 2022. “Researchers Track Down Two Copies of Fossil Destroyed by the Nazis.” The Washington Post , November 12, 2022. https://www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/.

Electronic Chicago Manual of Style Bibliography Examples

Last Name, First Name Middle Name. “Title.” Site Name . Year, Month Day. URL.

• Wukovits, John. “A World War II Survivor Recalls the London Blitz.” British Heritage. 2023, Jan. 30. britishheritage.com/history/world-war-ii-survivor-london-blitz.

“Title.” Site Name . URL. Accessed Day Month Year.

• “Growing Up in the Second World War.” Imperial War Museums . www.iwm.org.uk/history/growing-up-in-the-second-world-war. Accessed May 9, 2023.

Creator or Username. “Title of Video.” Website video, length. Month Day, Year. URL.

• War Stories. “How Did London Survive the Blitz During WW2? | Cities at War: London | War Stories.” YouTube video, 51:25. January 15, 2023. https://youtu.be/uwY6JlCvbxc.

For more information on writing Chicago -style bibliographies, see the Chicago Manual of Style website.

Chicago Manual of Style Bibliography Example Pages

Source: Chicago Manual of Style

More Chicago example pages:

• Scribbr Chicago Style Bibliography Example
• Purdue Online Writing Lab CMOS Bibliography Page
• Bibcitation Sample Chicago Bibliography

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Harvard Guide to Using Sources 

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• Bibliography

If you are using Chicago style footnotes or endnotes, you should include a bibliography at the end of your paper that provides complete citation information for all of the sources you cite in your paper. Bibliography entries are formatted differently from notes. For bibliography entries, you list the sources alphabetically by last name, so you will list the last name of the author or creator first in each entry. You should single-space within a bibliography entry and double-space between them. When an entry goes longer than one line, use a hanging indent of .5 inches for subsequent lines. Here’s a link to a sample bibliography that shows layout and spacing . You can find a sample of note format here .

Complete note vs. shortened note

Here’s an example of a complete note and a shortened version of a note for a book:

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), 27-35.

1. Karen Ho, Liquidated , 27-35.

Note vs. Bibliography entry

The bibliography entry that corresponds with each note is very similar to the longer version of the note, except that the author’s last and first name are reversed in the bibliography entry. To see differences between note and bibliography entries for different types of sources, check this section of the Chicago Manual of Style .

For Liquidated , the bibliography entry would look like this:

Ho, Karen, Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009.

Citing a source with two or three authors

If you are citing a source with two or three authors, list their names in your note in the order they appear in the original source. In the bibliography, invert only the name of the first author and use “and” before the last named author.

1. Melissa Borja and Jacob Gibson, “Internationalism with Evangelical Characteristics: The Case of Evangelical Responses to Southeast Asian Refugees,” The Review of Faith & International Affairs 17, no. 3 (2019): 80-81, https://doi.org/10.1080/15570274.2019.1643983 .

Shortened note:

1. Borja and Gibson, “Internationalism with Evangelical Characteristics,” 80-81.

Bibliography:

Borja, Melissa, and Jacob Gibson. “Internationalism with Evangelical Characteristics: The Case of Evangelical Responses to Southeast Asian Refugees.” The Review of Faith & International Affairs 17. no. 3 (2019): 80–93. https://doi.org/10.1080/15570274.2019.1643983 .

Citing a source with more than three authors

If you are citing a source with more than three authors, include all of them in the bibliography, but only include the first one in the note, followed by et al. ( et al. is the shortened form of the Latin et alia , which means “and others”).

1. Justine M. Nagurney, et al., “Risk Factors for Disability After Emergency Department Discharge in Older Adults,” Academic Emergency Medicine 27, no. 12 (2020): 1271.

Short version of note:

1. Justine M. Nagurney, et al., “Risk Factors for Disability,” 1271.

Nagurney, Justine M., Ling Han, Linda Leo‐Summers, Heather G. Allore, Thomas M. Gill, and Ula Hwang. “Risk Factors for Disability After Emergency Department Discharge in Older Adults.” Academic Emergency Medicine 27, no. 12 (2020): 1270–78. https://doi.org/10.1111/acem.14088 .

Citing a book consulted online

If you are citing a book you consulted online, you should include a URL, DOI, or the name of the database where you found the book.

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), 27-35, https://doi-org.ezp-prod1.hul.harvard.edu/10.1215/9780822391371 .

Bibliography entry:

Ho, Karen. Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009. https://doi-org.ezp-prod1.hul.harvard.edu/10.1215/9780822391371 .

Citing an e-book consulted outside of a database

If you are citing an e-book that you accessed outside of a database, you should indicate the format. If you read the book in a format without fixed page numbers (like Kindle, for example), you should not include the page numbers that you saw as you read. Instead, include chapter or section numbers, if possible.

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), chap. 2, Kindle.

Ho, Karen. Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009. Kindle.

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How to Write a Bibliography in APA Format

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Emily is a board-certified science editor who has worked with top digital publishing brands like Voices for Biodiversity, Study.com, GoodTherapy, Vox, and Verywell.

• APA Bibliography
• How to Create One
• Why You Need It

Sample Bibliography

An APA format bibliography lists all of the sources that might be used in a paper. A bibliography can be a great tool to help you keep track of information during the research and writing process. In some cases, your instructor may require you to include a bibliography as part of your assignment.

At a Glance

A well-written APA format bibliography can help you keep track of information and sources as you research and write your psychology paper. To create a bibliography, gather up all of the sources that you might use in your paper. Create an APA format reference for each source and then write a brief annotation. Your annotation should be a brief summary of what each reference is about. You can quickly refer to these annotations When writing your paper and determine which to include.

What Is an APA Format Bibliography?

An APA format bibliography is an alphabetical listing of all sources that might be used to write an academic paper, essay, article, or research paper—particularly work that is covering psychology or psychology-related topics. APA format is the official style of the American Psychological Association (APA). This format is used by many psychology professors, students, and researchers.

Even if it is not a required part of your assignment, writing a bibliography can help you keep track of your sources and make it much easier to create your final reference page in proper APA format.

Creating an APA Bibliography

A bibliography is similar in many ways to a reference section , but there are some important differences. While a reference section includes every source that was actually used in your paper, a bibliography may include sources that you considered using but may have dismissed because they were irrelevant or outdated.

Bibliographies can be a great way to keep track of information you might want to use in your paper and to organize the information that you find in different sources. The following are four steps you can follow to create your APA format bibliography.

Start on a New Page

Your working bibliography should be kept separate from the rest of your paper. Start it on a new page, with the title "Bibliography" centered at the top and in bold text. Some people use the title "References" instead, so it's best to check with your professor or instructor about which they prefer you to use.

Gather Your Sources

Compile all the sources you might possibly use in your paper. While you might not use all of these sources in your paper, having a complete list will make it easier later on when you prepare your reference section.

Gathering your sources can be particularly helpful when outlining and writing your paper.

By quickly glancing through your working bibliography, you will be able to get a better idea of which sources will be the most appropriate to support your thesis and main points.

Reference Each Source

Your references should be listed alphabetically by the author’s last name, and they should be double-spaced. The first line of each reference should be flush left, while each additional line of a single reference should be a few spaces to the right of the left margin, which is known as a hanging indent.

The format of each source is as follows for academic journals:

• Last name of first author (followed by their first initial)
• The year the source was published in parentheses
• The title of the source
• The journal that published the source (in italics)
• The volume number, if applicable (in italics)
• The issue number, if applicable
• Page numbers (in parentheses)
• The URL or "doi" in lowercase letters followed by a colon and the doi number, if applicable

The following examples are scholarly articles in academic journals, cited in APA format:

• Kulacaoglu, F., & Kose, S. (2018). Borderline personality disorder (BPD): In the midst of vulnerability, chaos, and awe.  Brain sciences ,  8 (11), 201. doi:10.3390/brainsci8110201
• Cattane, N., Rossi, R., & Lanfredi, M. (2017). Borderline personality disorder and childhood trauma: exploring the affected biological systems and mechanisms.  BMC Psychiatry,   18 (221). doi:10.1186/s12888-017-1383-2

Visit the American Psychological Association's website for more information on citing other types of sources including online media, audiovisual media, and more.

Create an Annotation for Each Source

Normally a bibliography contains only references' information, but in some cases you might decide to create an annotated bibliography. An annotation is a summary or evaluation of the source.

An annotation is a brief description of approximately 150 words describing the information in the source, your evaluation of its credibility, and how it pertains to your topic. Writing one of these for each piece of research will make your writing process faster and easier.

This step helpful in determining which sources to ultimately use in your paper. Your instructor may also require it as part of the assignment so they can assess your thought process and understanding of your topic.

Reasons to Write a Bibliography

One of the biggest reasons to create an APA format bibliography is simply to make the research and writing process easier.

If you do not have a comprehensive list of all of your references, you might find yourself scrambling to figure out where you found certain bits of information that you included in your paper.

A bibliography is also an important tool that your readers can use to access your sources.

While writing an annotated bibliography might not be required for your assignment, it can be a very useful step. The process of writing an annotation helps you learn more about your topic, develop a deeper understanding of the subject, and become better at evaluating various sources of information.

The following is an example of an APA format bibliography by the website EasyBib:

There are many online resources that demonstrate different formats of bibliographies, including the American Psychological Association website . Purdue University's Online Writing Lab also has examples of formatting an APA format bibliography.

Check out this video on their YouTube channel which provides detailed instructions on formatting an APA style bibliography in Microsoft Word.

You can check out the Purdue site for more information on writing an annotated APA bibliography as well.

What This Means For You

If you are taking a psychology class, you may be asked to create a bibliography as part of the research paper writing process. Even if your instructor does not expressly require a bibliography, creating one can be a helpful way to help structure your research and make the writing process more manageable.

For psychology majors , it can be helpful to save any bibliographies you have written throughout your studies so that you can refer back to them later when studying for exams or writing papers for other psychology courses.

American Psychological Association. Publication Manual of the American Psychological Association . 7th Edition. Washington, DC: American Psychological Association; 2020.

Masic I. The importance of proper citation of references in biomedical articles.   Acta Inform Med . 2013;21(3):148–155. doi:10.5455/aim.2013.21.148-155

American Psychological Association. How do you format a bibliography in APA Style?

Cornell University Library. How to prepare an annotated bibliography: The annotated bibliography .

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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• Referencing

A Quick Guide to Harvard Referencing | Citation Examples

Published on 14 February 2020 by Jack Caulfield . Revised on 15 September 2023.

Referencing is an important part of academic writing. It tells your readers what sources you’ve used and how to find them.

Harvard is the most common referencing style used in UK universities. In Harvard style, the author and year are cited in-text, and full details of the source are given in a reference list .

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Table of contents

Harvard in-text citation, creating a harvard reference list, harvard referencing examples, referencing sources with no author or date, frequently asked questions about harvard referencing.

A Harvard in-text citation appears in brackets beside any quotation or paraphrase of a source. It gives the last name of the author(s) and the year of publication, as well as a page number or range locating the passage referenced, if applicable:

Note that ‘p.’ is used for a single page, ‘pp.’ for multiple pages (e.g. ‘pp. 1–5’).

An in-text citation usually appears immediately after the quotation or paraphrase in question. It may also appear at the end of the relevant sentence, as long as it’s clear what it refers to.

When your sentence already mentions the name of the author, it should not be repeated in the citation:

Sources with multiple authors

When you cite a source with up to three authors, cite all authors’ names. For four or more authors, list only the first name, followed by ‘ et al. ’:

Sources with no page numbers

Some sources, such as websites , often don’t have page numbers. If the source is a short text, you can simply leave out the page number. With longer sources, you can use an alternate locator such as a subheading or paragraph number if you need to specify where to find the quote:

Multiple citations at the same point

When you need multiple citations to appear at the same point in your text – for example, when you refer to several sources with one phrase – you can present them in the same set of brackets, separated by semicolons. List them in order of publication date:

Multiple sources with the same author and date

If you cite multiple sources by the same author which were published in the same year, it’s important to distinguish between them in your citations. To do this, insert an ‘a’ after the year in the first one you reference, a ‘b’ in the second, and so on:

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A bibliography or reference list appears at the end of your text. It lists all your sources in alphabetical order by the author’s last name, giving complete information so that the reader can look them up if necessary.

The reference entry starts with the author’s last name followed by initial(s). Only the first word of the title is capitalised (as well as any proper nouns).

Sources with multiple authors in the reference list

As with in-text citations, up to three authors should be listed; when there are four or more, list only the first author followed by ‘ et al. ’:

Reference list entries vary according to source type, since different information is relevant for different sources. Formats and examples for the most commonly used source types are given below.

• Entire book
• Book chapter
• Translated book
• Edition of a book

Journal articles

• Print journal
• Online-only journal with DOI
• Online-only journal with no DOI
• General web page
• Online article or blog
• Social media post

Sometimes you won’t have all the information you need for a reference. This section covers what to do when a source lacks a publication date or named author.

No publication date

When a source doesn’t have a clear publication date – for example, a constantly updated reference source like Wikipedia or an obscure historical document which can’t be accurately dated – you can replace it with the words ‘no date’:

Note that when you do this with an online source, you should still include an access date, as in the example.

When a source lacks a clearly identified author, there’s often an appropriate corporate source – the organisation responsible for the source – whom you can credit as author instead, as in the Google and Wikipedia examples above.

When that’s not the case, you can just replace it with the title of the source in both the in-text citation and the reference list:

Harvard referencing uses an author–date system. Sources are cited by the author’s last name and the publication year in brackets. Each Harvard in-text citation corresponds to an entry in the alphabetised reference list at the end of the paper.

Vancouver referencing uses a numerical system. Sources are cited by a number in parentheses or superscript. Each number corresponds to a full reference at the end of the paper.

A Harvard in-text citation should appear in brackets every time you quote, paraphrase, or refer to information from a source.

The citation can appear immediately after the quotation or paraphrase, or at the end of the sentence. If you’re quoting, place the citation outside of the quotation marks but before any other punctuation like a comma or full stop.

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

Though the terms are sometimes used interchangeably, there is a difference in meaning:

• A reference list only includes sources cited in the text – every entry corresponds to an in-text citation .
• A bibliography also includes other sources which were consulted during the research but not cited.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2023, September 15). A Quick Guide to Harvard Referencing | Citation Examples. Scribbr. Retrieved 9 April 2024, from https://www.scribbr.co.uk/referencing/harvard-style/

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How to Write a Bibliography

Last Updated: March 12, 2024 Fact Checked

This article was co-authored by Diane Stubbs . Diane Stubbs is a Secondary English Teacher with over 22 years of experience teaching all high school grade levels and AP courses. She specializes in secondary education, classroom management, and educational technology. Diane earned a Bachelor of Arts in English from the University of Delaware and a Master of Education from Wesley College. There are 14 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 655,001 times.

When you write a paper or a book, it's important to include a bibliography. A bibliography tells your reader what sources you've used. It lists all the books, articles, and other references you cited in or used to inform your work. Bibliographies are typically formatted according to one of three styles: American Psychological Association (APA) for scientific papers, Modern Language Association (MLA) for humanities papers, and Chicago Manual of Style (CMS) for the social sciences. Make sure you always check with your superior - whether a professor or boss - about which style they prefer.

Sample Bibliographies

Writing an APA Bibliography

• For example, if the author's name for a source is "John Adams Smith," you would list him as "Smith, J.A.," before listing the title of his piece.

• For example, if one source has twelve authors, and the seventh author is "Smith, J.A." and the twelfth is "Timothy, S.J.," you would list the first six authors, then write "Smith, J.A. ...Timothy, S.J."

• For example, if you have a World Health Organization Report without an author as one of your sources, you would write, "World Health Organization, "Report on Development Strategies in Developing Nations," July 1996."

• For example, an article citation might look like this: Jensen, O. E. (2012). "African Elephants." Savannah Quarterly , 2(1), 88.
• If the periodical the article comes from always begins with page number 1 (these types of periodicals are called “paginated by issue” periodicals, you should include the full page range of the article.
• If the article was retrieved online, end the citation with the words "Retrieved from" followed by the web address.

• Example: Worden, B. L. (1999). Echoing Eden. New York, New York: One Two Press.
• If the title is more than one word long and doesn’t contain any proper nouns, only the first word should be capitalized. Only the first letter of any subtitle should be capitalized as well.

• For example, a cited website might look like this: Quarry, R. R. (May 23, 2010). Wild Skies. Retrieved from https://wildskies.com.
• If no author is available, just start with the title. If no date is available, write "n.d."

Writing a MLA Bibliography

• You shouldn’t use an author’s title or degrees when listing their names in your bibliography. This is true even if they are listed that way on the source.

• For example, a book citation might look like this: Butler, Olivia. Parable of the Flower. Sacramento: Seed Press, 1996.

• For example, an article published in a scholarly journal might look like this: Green, Marsha. "Life in Costa Rica." Science Magazine vol. 1, no. 4, Mar 2013: 1-2.
• If you’re citing an article in a newspaper, you only need the name of the newspaper, followed by the date it was published, and the page number. A citation for that might look like this: Smith, Jennifer. “Tiny Tim Wins Award.” New York Times, 24 Dec 2017, p. A7.

• For example, a website citation might look like this: Jong, June. "How to Write an Essay." Writing Portal. 2 Aug. 2012. University of California. 23 Feb. 2013. <https://writingportal.com>
• Some websites, particularly academic ones, will have what’s called a DOI (digital object identifier). Write “doi:” in front of this number in place of the website’s url if a DOI is available.

Writing a CMS Bibliography

• Example: Skylar Marsh. "Walking on Water." Earth Magazine 4(2001): 23.

• For example, a book entry might look like this: Walter White. Space and Time . New York: London Press, 1982

• Example: University of California. "History of University of California." Last modified April 3, 2013. https://universityofcalifornia.com.
• Unless there is a publication date for the website you’re citing, you don’t need to include an access date. If you do have an access date, it goes at the end of the citation.

Expert Q&A

• Ask your teacher or professor which style they prefer you to use in your paper. Thanks Helpful 6 Not Helpful 2
• Be sure to include each and every source you reference in your work. Thanks Helpful 7 Not Helpful 5
• When writing a bibliography or a reference page, it really comes down to looking at an example and applying it to your own information. Thanks Helpful 0 Not Helpful 0

You Might Also Like

• ↑ https://libguides.reading.ac.uk/citing-references/compilingbibliography
• ↑ https://morningside.libguides.com/APA7/references
• ↑ https://owl.english.purdue.edu/owl/resource/560/03/
• ↑ Cite articles
• ↑ https://owl.english.purdue.edu/owl/resource/560/08/
• ↑ https://owl.english.purdue.edu/owl/resource/560/10/
• ↑ https://www.scribbr.com/mla/works-cited/
• ↑ https://owl.english.purdue.edu/owl/resource/747/05/
• ↑ https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_formatting_and_style_guide/mla_works_cited_page_basic_format.html
• ↑ https://owl.english.purdue.edu/owl/resource/747/06/
• ↑ https://owl.english.purdue.edu/owl/resource/747/07/
• ↑ https://owl.english.purdue.edu/owl/resource/717/02/
• ↑ https://owl.english.purdue.edu/owl/resource/717/03/
• ↑ https://owl.english.purdue.edu/owl/resource/717/05/

About This Article

To create an APA bibliography, title a separate page at the end of your paper "References." Then, use the authors' last names to organize your list alphabetically, for example by writing the author John Adam Smith as "Smith, J. A." If a source has more than 7 authors, list the first 7 before adding an ellipses. To cite an article, include the author's name, year of publication, article title, publication title, and page numbers. When citing a book, begin with the author's name, then the date of publication, title in Italics, location of the publisher, and publisher's name. For tips on how to write an MLA or CMS bibliography, keep reading! Did this summary help you? Yes No

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In-Text Citations

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Home / Guides / Citation Guides / How to Cite Sources

How to Cite Sources

Here is a complete list for how to cite sources. Most of these guides present citation guidance and examples in MLA, APA, and Chicago.

If you’re looking for general information on MLA or APA citations , the EasyBib Writing Center was designed for you! It has articles on what’s needed in an MLA in-text citation , how to format an APA paper, what an MLA annotated bibliography is, making an MLA works cited page, and much more!

MLA Format Citation Examples

The Modern Language Association created the MLA Style, currently in its 9th edition, to provide researchers with guidelines for writing and documenting scholarly borrowings.  Most often used in the humanities, MLA style (or MLA format ) has been adopted and used by numerous other disciplines, in multiple parts of the world.

MLA provides standard rules to follow so that most research papers are formatted in a similar manner. This makes it easier for readers to comprehend the information. The MLA in-text citation guidelines, MLA works cited standards, and MLA annotated bibliography instructions provide scholars with the information they need to properly cite sources in their research papers, articles, and assignments.

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• PowerPoint Presentation
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• Thesis or Dissertation
• YouTube Video

APA Format Citation Examples

The American Psychological Association created the APA citation style in 1929 as a way to help psychologists, anthropologists, and even business managers establish one common way to cite sources and present content.

APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format ) is now in its 7th edition, and provides citation style guides for virtually any type of resource.

Chicago Style Citation Examples

The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes ) or at the end of a paper (endnotes).

The Turabian and Chicago citation styles are almost identical, but the Turabian style is geared towards student published papers such as theses and dissertations, while the Chicago style provides guidelines for all types of publications. This is why you’ll commonly see Chicago style and Turabian style presented together. The Chicago Manual of Style is currently in its 17th edition, and Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations is in its 8th edition.

Citing Specific Sources or Events

• Declaration of Independence
• Gettysburg Address
• Martin Luther King Jr. Speech
• President Obama’s Farewell Address
• President Trump’s Inauguration Speech
• White House Press Briefing

Additional FAQs

• Citing Archived Contributors
• Citing a Blog
• Citing a Book Chapter
• Citing a Source in a Foreign Language
• Citing an Image
• Citing a Song
• Citing Special Contributors
• Citing a Translated Article
• Citing a Tweet

6 Interesting Citation Facts

The world of citations may seem cut and dry, but there’s more to them than just specific capitalization rules, MLA in-text citations , and other formatting specifications. Citations have been helping researches document their sources for hundreds of years, and are a great way to learn more about a particular subject area.

Ever wonder what sets all the different styles apart, or how they came to be in the first place? Read on for some interesting facts about citations!

1. There are Over 7,000 Different Citation Styles

You may be familiar with MLA and APA citation styles, but there are actually thousands of citation styles used for all different academic disciplines all across the world. Deciding which one to use can be difficult, so be sure to ask you instructor which one you should be using for your next paper.

2. Some Citation Styles are Named After People

While a majority of citation styles are named for the specific organizations that publish them (i.e. APA is published by the American Psychological Association, and MLA format is named for the Modern Language Association), some are actually named after individuals. The most well-known example of this is perhaps Turabian style, named for Kate L. Turabian, an American educator and writer. She developed this style as a condensed version of the Chicago Manual of Style in order to present a more concise set of rules to students.

3. There are Some Really Specific and Uniquely Named Citation Styles

How specific can citation styles get? The answer is very. For example, the “Flavour and Fragrance Journal” style is based on a bimonthly, peer-reviewed scientific journal published since 1985 by John Wiley & Sons. It publishes original research articles, reviews and special reports on all aspects of flavor and fragrance. Another example is “Nordic Pulp and Paper Research,” a style used by an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents.

4. More citations were created on  EasyBib.com  in the first quarter of 2018 than there are people in California.

The US Census Bureau estimates that approximately 39.5 million people live in the state of California. Meanwhile, about 43 million citations were made on EasyBib from January to March of 2018. That’s a lot of citations.

5. “Citations” is a Word With a Long History

The word “citations” can be traced back literally thousands of years to the Latin word “citare” meaning “to summon, urge, call; put in sudden motion, call forward; rouse, excite.” The word then took on its more modern meaning and relevance to writing papers in the 1600s, where it became known as the “act of citing or quoting a passage from a book, etc.”

6. Citation Styles are Always Changing

The concept of citations always stays the same. It is a means of preventing plagiarism and demonstrating where you relied on outside sources. The specific style rules, however, can and do change regularly. For example, in 2018 alone, 46 new citation styles were introduced , and 106 updates were made to exiting styles. At EasyBib, we are always on the lookout for ways to improve our styles and opportunities to add new ones to our list.

Why Citations Matter

Here are the ways accurate citations can help your students achieve academic success, and how you can answer the dreaded question, “why should I cite my sources?”

They Give Credit to the Right People

Citing their sources makes sure that the reader can differentiate the student’s original thoughts from those of other researchers. Not only does this make sure that the sources they use receive proper credit for their work, it ensures that the student receives deserved recognition for their unique contributions to the topic. Whether the student is citing in MLA format , APA format , or any other style, citations serve as a natural way to place a student’s work in the broader context of the subject area, and serve as an easy way to gauge their commitment to the project.

They Provide Hard Evidence of Ideas

Having many citations from a wide variety of sources related to their idea means that the student is working on a well-researched and respected subject. Citing sources that back up their claim creates room for fact-checking and further research . And, if they can cite a few sources that have the converse opinion or idea, and then demonstrate to the reader why they believe that that viewpoint is wrong by again citing credible sources, the student is well on their way to winning over the reader and cementing their point of view.

They Promote Originality and Prevent Plagiarism

The point of research projects is not to regurgitate information that can already be found elsewhere. We have Google for that! What the student’s project should aim to do is promote an original idea or a spin on an existing idea, and use reliable sources to promote that idea. Copying or directly referencing a source without proper citation can lead to not only a poor grade, but accusations of academic dishonesty. By citing their sources regularly and accurately, students can easily avoid the trap of plagiarism , and promote further research on their topic.

They Create Better Researchers

By researching sources to back up and promote their ideas, students are becoming better researchers without even knowing it! Each time a new source is read or researched, the student is becoming more engaged with the project and is developing a deeper understanding of the subject area. Proper citations demonstrate a breadth of the student’s reading and dedication to the project itself. By creating citations, students are compelled to make connections between their sources and discern research patterns. Each time they complete this process, they are helping themselves become better researchers and writers overall.

When is the Right Time to Start Making Citations?

Make in-text/parenthetical citations as you need them.

As you are writing your paper, be sure to include references within the text that correspond with references in a works cited or bibliography. These are usually called in-text citations or parenthetical citations in MLA and APA formats. The most effective time to complete these is directly after you have made your reference to another source. For instance, after writing the line from Charles Dickens’ A Tale of Two Cities : “It was the best of times, it was the worst of times…,” you would include a citation like this (depending on your chosen citation style):

(Dickens 11).

This signals to the reader that you have referenced an outside source. What’s great about this system is that the in-text citations serve as a natural list for all of the citations you have made in your paper, which will make completing the works cited page a whole lot easier. After you are done writing, all that will be left for you to do is scan your paper for these references, and then build a works cited page that includes a citation for each one.

Need help creating an MLA works cited page ? Try the MLA format generator on EasyBib.com! We also have a guide on how to format an APA reference page .

2. Understand the General Formatting Rules of Your Citation Style Before You Start Writing

While reading up on paper formatting may not sound exciting, being aware of how your paper should look early on in the paper writing process is super important. Citation styles can dictate more than just the appearance of the citations themselves, but rather can impact the layout of your paper as a whole, with specific guidelines concerning margin width, title treatment, and even font size and spacing. Knowing how to organize your paper before you start writing will ensure that you do not receive a low grade for something as trivial as forgetting a hanging indent.

Don’t know where to start? Here’s a formatting guide on APA format .

3. Double-check All of Your Outside Sources for Relevance and Trustworthiness First

Collecting outside sources that support your research and specific topic is a critical step in writing an effective paper. But before you run to the library and grab the first 20 books you can lay your hands on, keep in mind that selecting a source to include in your paper should not be taken lightly. Before you proceed with using it to backup your ideas, run a quick Internet search for it and see if other scholars in your field have written about it as well. Check to see if there are book reviews about it or peer accolades. If you spot something that seems off to you, you may want to consider leaving it out of your work. Doing this before your start making citations can save you a ton of time in the long run.

Finished with your paper? It may be time to run it through a grammar and plagiarism checker , like the one offered by EasyBib Plus. If you’re just looking to brush up on the basics, our grammar guides  are ready anytime you are.

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How do I write a reference list or bibliography?

Check your style Make sure you know what style you need to use to make sure you have the right information

Look for missing information You need your references to be complete, so check that there are no gaps

Use referencing software This will make the whole process easier and quicker

Referencing is a two-part process. In addition to the citations within the text, you also need a list with a full reference for each source you have used. This list should contain all the information needed to find each piece of research. Correct citing and referencing should guide your reader to the sources of your information and evidence .

What's the difference between a reference list and a bibliography?

Reference list.

A reference list is a list of everything that you have cited in your work.

The list will be drawn from everything that you have either paraphrased or quoted in your assignment.

Bibliography

This is a list of everything that you have cited in your work and any other sources that you might have consulted during your research but have chosen not to cite in the assignment.

Whether you are asked to provide a reference list or a bibliography, both should provide accurate and full references. You need to give enough information that people can easily find your reference. It will vary depending on the type of material you need to reference, but you will always need to include the author, date of publication and title.

For books, you’ll need to include information on the publisher. For journals you’ll need to include facts on the journal itself - journal title and volume, issue and page numbers. For other types of reference you’ll need different pieces of information.

The more academic work you read, the more you will get used to recognising different types of reference.

The easiest thing to do is use some reference management software. For undergraduates, we suggest RefWorks . RefWorks is available online and free for you to use. It will manage the references for you but you’ll still need to make sure that the information that you put in is accurate.

The information you need to include in your reference will vary according to the style you’re using – make sure you know which style your department uses.

In the Library we support two styles, Harvard and Vancouver.

Current Students

How to write a bibliography

How to write a bibiliography.

A bibliography is not just “works cited.” It is  all  the relevant material you drew upon to write the paper the reader holds.

Do I need a bibliography?

If you read any articles or books in preparing your paper, you need a bibliography or footnotes.

• If you cite the arguments of “critics” and “supporters,” even if you don’t name them or quote them directly, you are likely referring to information you read in books or articles as opposed to information you’ve gathered firsthand, like a news reporter, and so you need a bibliography.
• If you quote sources and put some of the reference information in the text, you still need a bibliography, so that readers can track down the source material for themselves.
• If you use footnotes to identify the source of your material or the authors of every quote, you DO NOT need a bibliography, UNLESS there are materials to which you do not refer directly (or if you refer to additional sections of the materials you already referenced) that also helped you reach your conclusions. In any event, your footnotes need to follow the formatting guidelines below.

These guidelines follow those of the  American Psychological Association and may be slightly different than what you’re used to, but we will stick with them for the sake of consistency.

Notice the use of punctuation. Publication titles may be either  italicized  or underlined, but not both.

Books are the bibliography format with which you’re probably most familiar. Books follow this pattern:

Author Last Name, Author First Name. (Publication Year)  Title . Publisher’s City: Publisher. Page numbers.

Alexander, Carol. (2001)  Market Models: A Guide to Financial Data Analysis.  New York, NY: John Wiley & Sons. pp. 200-220.

Periodicals

Periodicals remove the publisher city and name and add the title of the article and the volume or issue number of the periodical. Notice article titles are put in quotation marks and only the publication title is italicized or underlined.

Author Last Name, Author First Name. (Publication Date—could be more than a year) “Article Title.” Publication   Title, Vol. # . (Issue #), Page numbers.

Salman, William A. (July-August 1997) “How to Write a Great Business Plan.”  Harvard Business Review  74. pp. 98-108.

Web versions of printed material

Because web sources are time-sensitive, meaning that web content can change day by day, it is important to include the day of retrieval and the URL from which you quoted the material. You include this in a retrieval statement.

The format for online versions of print publications should basically follow the same format as above, meaning if you’re referencing an online book, you should follow the book format with the addition of the retrieval statement. If you’re referencing an online periodical, you should follow the periodical format with the addition of the retrieval statement.

Note that you should not break the Internet address of the link, even if it requires its own line. Very long URLs, such as those that occur when using an online database, can be shortened by removing the retrieval code. (The retrieval code usually consists of a long string of unintelligible letters and numbers following the end point “htm” or “html.” Remove everything that occurs after that point to shorten.)

Author. (Date of Internet Publication—could be more than a year) “Document Title.”  Title of Publication . Retrieved on: Date from Full Web Address, starting with http://

Grant, Linda. (January 13, 1997) “Can Fisher Focus Kodak?”  Fortune . Retrieved on August 22, 2020 from (insert full web address here)

The above is just one example of citing online sources. There are more extensive bibliographic guidelines at www.bedfordstmartins.com/online/cite6.html .

How to cite sources in the text

In-text citations alert readers to cited material and tell them exactly where to go and look. These citations work in conjunction with a bibliography.

• Usually, an in-text citation is a combination of a name (usually the author’s) and a number (either a year, a page number, or both).
• For Internet sources, use the original publication date, not your retrieval date.
• Internet sources also do not have page numbers, so use your discretion in the format that will direct the reader closest to the relevant section. You can number the paragraphs (abbreviate “par.”) or chapters (abbreviate “chap.”) or sections (abbreviate “sec.”).
• If there is no author listed, the document’s title should be used in place of the author’s name. Use the entire title but not the subtitle. Subtitles are anything appearing after a colon (:).

Use a signal phrase

A signal phrase alerts the reader to the fact that you are citing another source for the information he or she is about to read.

Myers (1997) reported that “structured decision aids, as a factor in a more structured audit approach, are designed to focus the auditor on relevant information to improve effectiveness, and to improve audit efficiency, by eliminating the time needed to develop or organize individual approaches to the audit problems.” (sec. 1, “Introduction”)

Note that the date goes with the author, directions within the document go with the quote.

Later on, same source, different section:

According to one study (Myers, 1997), inexperienced auditors from a structured firm will demonstrate higher audit effectiveness in the typical audit situation than inexperienced auditors from an unstructured firm. (sec. 2, “Structure and Audit Effectiveness”)

Full parenthetical citation after the material cited

Another method is to end the quote with the full citation:

The primary controversies surrounding the issue of accounting for stock-based compensation include whether these instruments represent an expense that should be recognized in the income statement and, if so, when they should be recognized and how they should be measured. (Martin and Duchac, 1997, Sec. 3, “Theoretical Justification for Expense Recognition”)

For long quotes, use a previewing sentence and a parenthetical citation

Long quotes are 40 words or longer and should be single-spaced even in double-spaced papers. The previewing sentence tells the reader what to look for in the quotes (and helps the reader change gears from you to another author).

Martin and Duchac (1997) reiterate the problems with stock-based compensation and accounting issues:

While it is true these estimates generate uncertainties about value and the costs to be recognized, cost recognition should be the fundamental objective and information based on estimates can be useful just as it is with defined benefit pension plans. Given the similarities between stock based compensation and defined benefit pension costs, an expense should be recognized for employee stock options just as pension costs are recognized for defined benefit pension plans. The FASB agreed with this assessment in their exposure draft on stock based compensation, noting that nonrecognition of employee stock option costs produces financial statements that are neither credible nor representationally faithful. (sec. 2.1, “Recognition of Compensation Cost”)

Note the consistent indentation and the paragraph break inside the quote. Also note that the parenthetical citation falls outside the closing period.

Source-reflective statements

Sometimes, summarizing arguments from your sources can leave the reader in doubt as to whose opinion he or she is seeing. If the language is too close to the original source’s, you can leave yourself open to charges of low-level plagiarism or “word borrowing.” Using a source-reflective statement can clarify this problem, allowing you the freedom to assert your voice and opinion without causing confusion. For example:

Myers (1997) reported that “structured decision aids, as a factor in a more structured audit approach, are designed to focus the auditor on relevant information to improve effectiveness, and to improve audit efficiency, by eliminating the time needed to develop or organize individual approaches to the audit problems.” (sec. 1, “Introduction”) Thus, audit pricing by firms with a structured audit approach is lower, on average, than firms with an intermediate or unstructured audit approach.

Is the observation in the last sentence Myers’s or the author’s? We aren’t sure. So insert a source-reflective statement to avoid confusion.

Myers (1997) reported that “structured decision aids, as a factor in a more structured audit approach, are designed to focus the auditor on relevant information to improve effectiveness, and to improve audit efficiency, by eliminating the time needed to develop or organize individual approaches to the audit problems.” (sec. 1, “Introduction”)  Myers’s observation suggests that  audit pricing by firms with a structured audit approach is lower, on average, than firms with an intermediate or unstructured audit approach.

When and how to use footnotes

You may decide to substitute footnotes for in-text citations and a bibliography. Footnotes are thorough, like entries in the bibliography, and yet specific, like in-text citations. However, depending on the thoroughness of your use of footnotes, you may also need a bibliography.

If you decide to use footnotes, you should follow the format outlined above for the information to include in your entries and should number each footnote separately (1, 2, 3, etc.). You should NOT use the same number twice, even when referencing the same document. Check out guidelines such as those in the  Chicago Manual of Style  or the  MLA Handbook  for more information about how to number your footnote entries.

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Citing Sources - References vs Bibliography

References and Bibliographies - What's the difference?

When you write academic papers, you will need to include a list of sources you used to write the paper. There are two main ways to list your sources, with a reference list or a bibliography.

References include sources that have been directly cited in your paper. For each source, you will have at least one in-text citation in the body of your paper. The citation styles that use reference lists include APA citations, AMA citations, and MLA citations.

Bibliographies, on the other hand, contain all the sources that you have used for your paper, whether they are directly cited or not. In a bibliography, you should include all of the materials you consulted in preparing your paper. Chicago citations and Oxford citations are two citation styles that use bibliographies.

Both reference lists and bibliographies appear at the end of a written work and are usually organized alphabetically. A paper can have both a reference list and a bibliography.

For more information on how to cite your sources, check out the De Paul Library's Citation Guide .

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How to Write a Bibliography: Referencing Styles Explained

• Distance Learning

Published: 13 July 2021

Author: Greg Robson

If you aren't familiar with writing bibliographies as part of your assignments, it can feel pretty confusing. Often, bibliographies are an afterthought or something left to the last minute. However, if you collect the information as you study, bibliographies can be a hassle-free part of your project. … Read More

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If you aren't familiar with writing bibliographies as part of your assignments, it can feel pretty confusing. Often, bibliographies are an afterthought or something left to the last minute. However, if you collect the information as you study, bibliographies can be a hassle-free part of your project.  

In this guide, we explain exactly what a bibliography is, the different referencing styles and where to find the necessary information.  

What is a bibliography? 

A bibliography is the list of sources you used to build your assignment. You should include anything you actively referenced in your work and anything you read as part of your project's research and learning phase, even if you don't explicitly cite them within your project.    

What are primary and secondary sources? 

Your course teacher may request you order your bibliography using primary and secondary sources. This is much more simple than it sounds.   

A primary source refers to works created by people directly connected with the topic you are writing about. For example, if you are discussing a  psychological study , a primary source would be a psychologist who was actively involved in the study.  

On the other hand, secondary sources refer to any authors that discuss the topic you are studying but have no direct association.   

What should you include in a bibliography? 

We recommend compiling your bibliography as you study. Whether or not you directly reference sources, if you use them as part of your studies, they should be included. By collecting this information and building your bibliography as you go, you’ll find it far less stressful and one less thing to worry about.    

Information required for referencing printed sources: 

• The name of the author.  
• The title of the publication or article.  
• The date of publication.  
• The page number in the book where the citation can be found.  
• The name of the publishing company.  
• If you’re referencing a magazine or printed encyclopedia, record the volume number.  

Information required for referencing web sources: 

• The name of the author or editor.  
• The title of the webpage.  
• The company that created the webpage.  
• The URL of the piece.  
• The last date you visited the webpage.  

Where to find this information 

The information you need to include in your bibliography will be located in different places, which can be pretty frustrating, particularly if you’ve left your referencing to the last minute. However, there are a few specific places where this information is likely to be found:  

• The contents page (for magazine or journal articles).  
• The first, second or editorial page (for newspapers).  
• The header or footer of the webpage.  
• The contact, or about, page of the website.  

What are the different bibliography styles?  

In addition to structuring your bibliography correctly, depending on whether your source is a book, magazine, newspaper or webpage, you need to find out what bibliographic style is required.  

  Different course tutors will ask for a specific referencing style. This means that you simply present your source information in a different order.   

There are four main styles that you might be asked to follow: MLA, APA, Harvard or MHRA, and the chosen style will change your reference order:    

MRL reference order 

• Full name of the author (last name first).  
• The title of the book.  
• Publication place.  
• The name of the book publisher.  
• The publication date.  

APA/Harvard reference order  

• If using Harvard referencing, title your bibliography as ‘References’.  
• Author’s last name.  
• Author's first initial.  
• The publication date (in brackets).  
• The book title.  
• The publication place.  

MHRA reference order  

• Author’s first and last name  
• The title of the book  
• The publication date  

Points three to five should all be included in the same bracket.  

How to write a bibliography 

Whatever the style needed for your bibliography, there are some simple rules to follow for success:  

• Collect citation information as you go.  
• All citations must be listed alphabetically using the author's last name (if using the MHRA style, use the author’s first name).  
• If you can’t source the author's name, alphabetise using the book or article title.   
• If there are multiple authors of an article or book, alphabetise by the first author.  
• Consistency is key. All the information must be listed in exactly the same way.  
• Each source should begin on a new line.   
• Bibliographies should be placed at the end of your assignment.

If you’re unsure about constructing your bibliography, get in touch with your  tutor , who will be able to help.  

We hope this handy guide clears up any confusion you have about referencing styles. If you’re looking to level up your learning, our experienced learning advisers are here to help. For more information,  browse our complete range of courses  or give us a call on 0121 630 3000.  

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Harvard: Reference List and Bibliography

A version of the Harvard (author-date) System of referencing has been adopted as the standard for the presentation of academic text at the University of Birmingham.  The examples on this page refer to this version, as found on the  Cite Them Right Online  website.  For detailed guides on how to reference and cite different sources see the right-hand side panel. 

How to list your references

In the Harvard (author-date) System the list of references is arranged alphabetically by author's surname, year (and letter, if necessary) and is placed at the end of the work.

A reference list is the detailed list of references that are cited in your work.   A bibliography is a detailed list of references cited in your work, plus the background readings or other material that you may have read, but not actually cited.  Different courses may require just a reference list, just a bibliography, or even both.  It is better to check with your tutor first.

Example of a reference list

Banerjee, A. and Watson, T.F. (2011)  Pickard’s manual of operative dentistry.  9th edn. Oxford: Oxford University Press. 

Davidson, A. (2013) ‘The Saudi Marathon Man’,  The New Yorker,  16 April. Available at: http://www.newyorker.com/news/daily-comment/the-saudi-marathon-man (Accessed: 22 June 2015).

Guy, J. (2001)  The view across the river: Harriette Colenso and the Zulu struggle against imperialism.  Charlottesville, Virginia: University Press of Virginia.

Hislop, V. (2014)  The sunrise.  Available at  http://www.amazon.co.uk/kindlestore  (Downloaded: 17 June 2015).

Homer (1997)  The Iliad.  Translated by J. Davies. Introduction and notes by D. Wright. London: Dover Publications.

Knapik, J. J., Cosio-Lima, L. M., and Reynolds, K. L. (2015) ‘Efficacy of functional movement screening for predicting injuries in coast guard cadets’,  The Journal of Strength and Conditioning Research , 29 (5), pp. 1157-1162.  EDUC 1028: E-learning.  Available at:  http://intranet.bir.ac.uk  (Accessed: 25 June 2015).

Lucas, G. (2004)  The wonders of the Universe.  2nd edn. Edited by Frederick Jones, James Smith and Tony Bradley. London: Smiths.

Medicine in old age  (1985) 2nd edn. London: British Medical Association.

‘Rush (band)’ (2015)  Wikipedia.  Available at  https://en.wikipedia.org/?title=Rush_(band)  (Accessed: 18 June 2015).

Example of a bibliography

Centres for Disease Control and Prevention (1994)  Epi Info  (Version 6) [Computer program]. Available at  http://www.cdcp.com/download.html  (Accessed: 23 June 2015).

Gregory, S. (1970)  English military intervention in the Dutch revolt.  B.A. Thesis. University of Birmingham. Available at:  http://findit.bham.ac.uk/  (Accessed: 18 June 2015).

Jones, B., (1997) Methods in tumour research.  National Agency for Tumour Research,  volume. 7.

Peart, N. (1976)  Something for Nothing.  Toronto: Toronto Sound Studios.

Rush (2015) [Bishopthorpe Social Club. 29 March].

The University of Birmingham (2010)  The University of Birmingham experience.  Available at:  https://www.youtube.com/watch?v=YLxV5L6IaFA  (Accessed: 18 June 2015).

Style notes

• The date of publication always follows the author(s) name(s).
• All authors’/editors’ names are given in the reference list (not matter how many there are).
• If submitting a manuscript for publication, formatting conventions may be stipulated by the publisher. Always check with the publisher before submitting your work. 

Further help

• If in doubt, consult the  Cite Them Right Online  website.

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• How to Cite a Website | MLA, APA & Chicago Examples

How to Cite a Website | MLA, APA & Chicago Examples

Published on March 5, 2021 by Jack Caulfield . Revised on January 17, 2024.

To cite a page from a website, you need a short in-text citation and a corresponding reference stating the author’s name, the date of publication, the title of the page, the website name, and the URL.

This information is presented differently in different citation styles. APA , MLA , and Chicago are the most commonly used styles.

Use the interactive example generator below to explore APA and MLA website citations.

Note that the format is slightly different for citing YouTube and other online video platforms, or for citing an image .

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Table of contents

Citing a website in mla style, citing a website in apa style, citing a website in chicago style, frequently asked questions about citations.

An MLA Works Cited entry for a webpage lists the author’s name , the title of the page (in quotation marks), the name of the site (in italics), the date of publication, and the URL.

The in-text citation usually just lists the author’s name. For a long page, you may specify a (shortened) section heading to locate the specific passage. Don’t use paragraph numbers unless they’re specifically numbered on the page.

The same format is used for blog posts and online articles from newspapers and magazines.

You can also use our free MLA Citation Generator to generate your website citations.

Generate accurate MLA citations with Scribbr

Citing a whole website.

When you cite an entire website rather than a specific page, include the author if one can be identified for the whole site (e.g. for a single-authored blog). Otherwise, just start with the site name.

List the copyright date displayed on the site; if there isn’t one, provide an access date after the URL.

Webpages with no author or date

When no author is listed, cite the organization as author only if it differs from the website name.

If the organization name is also the website name, start the Works Cited entry with the title instead, and use a shortened version of the title in the in-text citation.

When no publication date is listed, leave it out and include an access date at the end instead.

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An APA reference for a webpage lists the author’s last name and initials, the full date of publication, the title of the page (in italics), the website name (in plain text), and the URL.

The in-text citation lists the author’s last name and the year. If it’s a long page, you may include a locator to identify the quote or paraphrase (e.g. a paragraph number and/or section title).

Note that a general reference to an entire website doesn’t require a citation in APA Style; just include the URL in parentheses after you mention the site.

You can also use our free APA Citation Generator to create your webpage citations. Search for a URL to retrieve the details.

Generate accurate APA citations with Scribbr

Blog posts and online articles.

Blog posts follow a slightly different format: the title of the post is not italicized, and the name of the blog is.

The same format is used for online newspaper and magazine articles—but not for articles from news sites like Reuters and BBC News (see the previous example).

When a page has no author specified, list the name of the organization that created it instead (and omit it later if it’s the same as the website name).

When it doesn’t list a date of publication, use “n.d.” in place of the date. You can also include an access date if the page seems likely to change over time.

In Chicago notes and bibliography style, footnotes are used to cite sources. They refer to a bibliography at the end that lists all your sources in full.

A Chicago bibliography entry for a website lists the author’s name, the page title (in quotation marks), the website name, the publication date, and the URL.

Chicago also has an alternative author-date citation style . Examples of website citations in this style can be found here .

For blog posts and online articles from newspapers, the name of the publication is italicized. For a blog post, you should also add the word “blog” in parentheses, unless it’s already part of the blog’s name.

When a web source doesn’t list an author , you can usually begin your bibliography entry and short note with the name of the organization responsible. Don’t repeat it later if it’s also the name of the website. A full note should begin with the title instead.

When no publication or revision date is shown, include an access date instead in your bibliography entry.

The main elements included in website citations across APA , MLA , and Chicago style are the author, the date of publication, the page title, the website name, and the URL. The information is presented differently in each style.

In APA , MLA , and Chicago style citations for sources that don’t list a specific author (e.g. many websites ), you can usually list the organization responsible for the source as the author.

If the organization is the same as the website or publisher, you shouldn’t repeat it twice in your reference:

• In APA and Chicago, omit the website or publisher name later in the reference.
• In MLA, omit the author element at the start of the reference, and cite the source title instead.

If there’s no appropriate organization to list as author, you will usually have to begin the citation and reference entry with the title of the source instead.

When you want to cite a specific passage in a source without page numbers (e.g. an e-book or website ), all the main citation styles recommend using an alternate locator in your in-text citation . You might use a heading or chapter number, e.g. (Smith, 2016, ch. 1)

In APA Style , you can count the paragraph numbers in a text to identify a location by paragraph number. MLA and Chicago recommend that you only use paragraph numbers if they’re explicitly marked in the text.

For audiovisual sources (e.g. videos ), all styles recommend using a timestamp to show a specific point in the video when relevant.

Check if your university or course guidelines specify which citation style to use. If the choice is left up to you, consider which style is most commonly used in your field.

• APA Style is the most popular citation style, widely used in the social and behavioral sciences.
• MLA style is the second most popular, used mainly in the humanities.
• Chicago notes and bibliography style is also popular in the humanities, especially history.
• Chicago author-date style tends to be used in the sciences.

Other more specialized styles exist for certain fields, such as Bluebook and OSCOLA for law.

The most important thing is to choose one style and use it consistently throughout your text.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Caulfield, J. (2024, January 17). How to Cite a Website | MLA, APA & Chicago Examples. Scribbr. Retrieved April 12, 2024, from https://www.scribbr.com/citing-sources/cite-a-website/

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