In-Text Citations in APA Style: Citing Multiple Authors
In academic writing, proper citation is crucial to avoid plagiarism and give credit to the original authors of ideas and research. The American Psychological Association (APA) style is widely used in social sciences and business fields. When citing multiple authors in APA style, it can be challenging to format in-text citations correctly. In this article, we will explore the rules for citing multiple authors in APA style and provide examples to illustrate the correct format.
Basic In-Text Citation Rules
In APA style, in-text citations consist of the author's last name and publication year, separated by a comma. For a single author, the format is:
Smith (2020)
However, when citing multiple authors, the format changes slightly. The rule of thumb is to list up to five authors with an ampersand (&) before the last author, and six or more authors, use an ampersand before the first author, then list only the first author's last name, and the year of publication.
Citing Two to Five Authors
For two to five authors, the in-text citation format is:
Smith, Johnson, & Thompson (2020)

As seen in this example, the authors' names are separated by commas and an ampersand (&) is used before the last author's name.
Citing Six or More Authors
When citing six or more authors, the format is:
Smith, et al. (2020)
Notice that only the first author's last name is listed, followed by the abbreviation "et al.," which means "and others." The year of publication remains the same.
Citing Multiple Sources with the Same Author
When citing multiple sources with the same author, the in-text citation format is different. For sources with the same author and different years, list the publication years separated by commas, in the order of publication:
Smith (2020, 2018, 2015)
For sources with the same author and the same year, use "a," "b," "c," and so on to distinguish between the sources:
Smith (2020a, 2020b)
Citing Multiple Authors with the Same Last Name
When citing multiple authors with the same last name, list the first author's initials to distinguish between them:
J. Smith, M. Smith, & J. Johnson (2020)
This format helps to avoid confusion when citing multiple authors with the same last name.
Additional Tips
- When citing multiple sources, list them in alphabetical order by author's last name.
- For online sources, include the DOI (digital object identifier) or the URL if there is no DOI.
- Use the same formatting for all in-text citations throughout the paper.
Conclusion
Proper citation is essential in academic writing to maintain academic integrity. By following the APA style guidelines for in-text citations of multiple authors, you can ensure that your citations are accurate and consistent. Remember to use the correct format for each type of citation, and don't hesitate to consult the APA Publication Manual or online resources for further guidance.