apa purdue owl in text citations multiple authors

APA Style: Book with three or more authors

• Getting Started

Reference List

• Book with a single author
• Book with two authors
• Book with three or more authors
• Edited book
• Chapter in an edited book
• Edition of a book other than the first
• Journal article with one author
• Journal article with two authors
• Journal article with three or more authors
• Journal article (print)
• Basic webpage
• Official publication online
• Video sharing websites (YouTube)
• Cochrane Review
• Conference papers and poster sessions
• Newspaper article
• Tests and measurement instruments
• Theses/Dissertations
• Multiple works by the same author
• Secondary sources
• Online Library Tutorials

About Citing Books

In-Text Citation (Paraphrase) - entry that appears in the body of your paper when you express the ideas of a researcher or author using your own words.  For more tips on paraphrasing check out The OWL at Purdue .

In-Text Citation (Quotation) - entry that appears in the body of your paper after a direct quote.

References - entry that appears at the end of your paper.

Book With Three Or More Authors

Note : For a work with three or more authors, include the name of only the first author plus "et al." in every citation, including the first citation, unless doing so would create ambiguity. 

In-text citation (Paraphrase)

(Greig et al., 2013)

In-text citation (Quotation)

(Greig et al., 2013, p. 57)

Provide surnames and initials for up to and including 20 authors. When there are two to 20 authors, use an ampersand before the final author’s name: Author, A. A., Author, B. B., & Author, C. C. When there are 21 or more authors, include the first 19 authors’ names, insert an ellipsis (but no ampersand), and then add the final author’s name.

Greig, A., Taylor, J., & MacKay, T. (2013).  Doing research with children: A practical

guide. Sage.

Author Surname, Initial(s)., Author Surname, Initial(s)., & Author Surname, Initial(s).

(Year). Book title: Subtitle. Publisher.

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APA Citation Style, 7th edition: Three to Five Authors or Editors

• General Style Guidelines
• One Author or Editor
• Two Authors or Editors
• Three to Five Authors or Editors
• Article or Chapter in an Edited Book
• Article in a Reference Book
• Edition other than the First
• Translation
• Government Publication
• Journal Article with 1 Author
• Journal Article with 2 Authors
• Journal Article with 3–20 Authors
• Journal Article 21 or more Authors
• Magazine Article
• Newspaper Article
• Basic Web Page
• Web page from a University site
• Web Page with No Author
• Entry in a Reference Work
• Government Document
• Film and Television
• Youtube Video
• Audio Podcast
• Electronic Image
• Twitter/Instagram
• Lecture/PPT
• Conferences
• Secondary Sources
• Citation Support
• Avoiding Plagiarism
• Formatting Your Paper

About Citing Books

For each type of source in this guide, both the general form and an example will be provided.

The following format will be used:

In-Text Citation (Paraphrase) - entry that appears in the body of your paper when you express the ideas of a researcher or author using your own words.  For more tips on paraphrasing check out The OWL at Purdue .

In-Text Citation (Quotation) - entry that appears in the body of your paper after a direct quote.

References - entry that appears at the end of your paper.

Information on citing and several of the examples were drawn from the Publication Manual of the American Psychological Association (7th ed.).

Book with Three to Five Authors or Editors

The general format below refers to a book with three or more authors.

If you are dealing with a book that has three to five editors instead of authors, you would simply insert the names of the editors into the place where the authors' names are now, followed by "(Eds.)" without the quotation marks (as per the example). The rest of the format would remain the same.

General Format

In-Text Citation (Paraphrase):

(Author Surname et al., Year)

NOTE: The in-text citation for works with three or more authors is shortened to the first author's name followed by et al. and the year.

In-Text Citation (Direct Quote):

(Author Surname et al., Year, page number)

References:

Author Surname, First Initial. Second Initial., Author Surname, First Initial. Second Initial., & Author Surname, First Initial. Second Initial. (Year). Book title: Subtitle . Publisher.

(Johnson et al., 1999)

(Johnson  et al., 1999, p. 72)

Johnson, N. G., Roberts, M. C., & Worell, J. (Eds.). (1999). Beyond appearance: A new look at adolescent girls . American Psychological Association.

Subject Guide

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APA Formatting and Style Guide (7th Edition)

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In-Text Citations

Resources on using in-text citations in APA style

Reference List

Resources on writing an APA style reference list, including citation formats

Other APA Resources

Generate accurate APA citations for free

• Knowledge Base
• APA Style 7th edition
• Beginner’s guide to APA in-text citation

APA In-Text Citations (7th Ed.) | Multiple Authors & Missing Info

Published on November 4, 2020 by Raimo Streefkerk . Revised on September 30, 2022.

In-text citations briefly identify the source of information in the body text. They correspond to a full reference entry at the end of your paper.

APA in-text citations consist of the author’s last name and publication year. When citing a specific part of a source, also include a page number or range, for example (Parker, 2020, p. 67) or (Johnson, 2017, pp. 39–41) .

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• APA Style 6th & 7th edition

Table of contents

Apa in-text citations explained in 4 minutes, parenthetical vs. narrative citations, apa in-text citations with multiple authors, no author, date or page number, multiple sources in one parenthesis, avoiding ambiguity in apa in-text citations, citing indirect sources (“as cited in”), citing personal communication, general mentions of websites and software, example paragraph with in-text citations, frequently asked questions.

The in-text citation can be placed in parentheses or naturally integrated into a sentence.

• Parenthetical : There is a correlation between social media usage and anxiety symptoms in teenagers (Parker, 2019) .
• Narrative: Parker (2019) found a correlation between social media usage and anxiety symptoms in teenagers.

The publication year appears directly after the author’s name when using the narrative format. The parenthetical citation can be placed within or at the end of a sentence, just before the period. Check out a full example paragraph with in-text citations .

If a work has two authors, separate their names with an ampersand (&) in a parenthetical citation or “and” in a narrative citation. If there are three or more authors, only include the first author’s last name followed by “et al.”, meaning “and others”.

Group authors known by their abbreviations (e.g., CDC) are written in full the first time and are abbreviated in subsequent citations.

If the author of a source is unknown, try to determine if there is an organization or government responsible for creating the content. If so, include its name in the in-text citation (and reference entry).

Alternatively, use the source title in place of the author. Italicize the title if it’s italicized in the reference entry (except for court cases , which are italicized in the in-text citation but not the reference entry). Otherwise, enclose it in double quotation marks.

Apply title case capitalization, and shorten long titles. The first word of the title should always be included so readers can easily locate the corresponding reference entry.

• (“U.S. Flood Risk,” 2015)
• ( Thinking, Fast and Slow , 2017)

No publication date

If the publication date is unknown, write “n.d.” (no date) in the in-text citation.

No page number (alternative locators)

Page numbers are only required with direct quotes in APA . If you are quoting from a work that does not have page numbers (e.g., webpages or YouTube videos ), you can use an alternative locator, such as:

• (Liu, 2020, 03:26 )
• (Johnson, 2019, Chapter 3 )
• (McCombes, 2016, para. 4 )
• (Davis, 2016, Slide 15 )
• (Flores, 2020, Table 5 )
• (Streefkerk, 2020, “No page number” section )

Note that Bible citations always use chapter and verse numbers, even when page numbers are available:

If a statement is supported by multiple sources, the in-text citations can be combined in one parenthesis. Order the sources alphabetically, and separate them with a semicolon.

When citing multiple works from the same author, list the years of publication separated by a comma.

When in-text citations are ambiguous because they correspond to multiple reference entries, apply the solutions outlined in the table below.

If you want to refer to a source that you have found in another source, you should always try to access the original or primary source .

However, if you cannot find the original source , you should cite it through the secondary source that led you to it, using the phrase “as cited in”.

If the publication date of the primary source is unknown, include only the year of publication of the secondary source.

Only include a reference entry for the secondary source, not the primary source.

Personal communications , such as phone calls, emails, and interviews, are not included in the reference list because readers can’t access them. The in-text citation is also formatted slightly differently.

Include the initials and last name of the person you communicated with, the words “personal communication,” and the exact date in parentheses.

General mentions of a website or software don’t have to be cited with an in-text citation or entry in the reference list. Instead, incorporate relevant information into the running text.

• The website of Scribbr (www.scribbr.com) contains various useful resources.
• Statistical software SPSS (version 25) was used to analyze the data.

When citing a webpage or online article , the APA in-text citation consists of the author’s last name and year of publication. For example: (Worland & Williams, 2015). Note that the author can also be an organization. For example: (American Psychological Association, 2019).

If you’re quoting you should also include a locator. Since web pages don’t have page numbers, you can use one of the following options:

• Paragraph number: (Smith, 2018, para. 15).
• Heading or section name: ( CDC, 2020, Flu Season section)
• Abbreviated heading:  ( CDC, 2020, “Key Facts” section)

Instead of the author’s name, include the first few words of the work’s title in the in-text citation. Enclose the title in double quotation marks when citing an article, web page or book chapter. Italicize the title of periodicals, books, and reports.

If the publication date is unknown , use “n.d.” (no date) instead. For example: (Johnson, n.d.).

The abbreviation “ et al. ” (meaning “and others”) is used to shorten APA in-text citations with three or more authors . Here’s how it works:

Only include the first author’s last name, followed by “et al.”, a comma and the year of publication, for example (Taylor et al., 2018).

Always include page numbers in the APA in-text citation when quoting a source . Don’t include page numbers when referring to a work as a whole – for example, an entire book or journal article.

If your source does not have page numbers, you can use an alternative locator such as a timestamp, chapter heading or paragraph number.

If you cite several sources by the same author or group of authors, you’ll distinguish between them in your APA in-text citations using the year of publication.

If you cite multiple sources by the same author(s) at the same point , you can just write the author name(s) once and separate the different years with commas, e.g., (Smith, 2020, 2021).

To distinguish between sources with the same author(s) and  the same publication year, add a different lowercase letter after the year for each source, e.g., (Smith, 2020, 2021a, 2021b). Add the same letters to the corresponding reference entries .

In an APA in-text citation , you use the phrase “ as cited in ” if you want to cite a source indirectly (i.e., if you cannot find the original source).

Parenthetical citation: (Brown, 1829, as cited in Mahone, 2018) Narrative citation: Brown (1829, as cited in Mahone, 2018) states that…

On the reference page , you only include the secondary source (Mahone, 2018).

An APA in-text citation is placed before the final punctuation mark in a sentence.

• The company invested over 40,000 hours in optimizing its algorithm (Davis, 2011) .
• A recent poll suggests that EU membership “would be backed by 55 percent of Danish voters” in a referendum (Levring, 2018) .

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Streefkerk, R. (2022, September 30). APA In-Text Citations (7th Ed.) | Multiple Authors & Missing Info. Scribbr. Retrieved December 2, 2023, from https://www.scribbr.com/apa-style/in-text-citation/

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