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APA 7th Edition Citation Guide

In-Text: Authors and Dates Matching

How to Use This Guide

Citations in APA style include two parts: (1) in-text citations, which are connected to (2) reference list citations.

This guide will help you create in-text citations that correlate with the corresponding reference list citations. Please see Reference Examples for more details on the reference list.

Note: All sources that are cited in the text must appear in the reference list at the end of the paper except for Personal Communications and similar unrecoverable sources.

Authors and Dates Matching

When you have two or more documents matching the first author's surnames, you need to differentiate the two documents in the text. Follow these basic steps.

Step 1

Determine if the dates are the same. If two documents are written by the same author, for example, they may not have the same date. If the dates are different, then simply providing the dates is enough to differentiate the two items. If the two items have the same date, head to the next step.

Example

Jones (2009) first argued...

Jones (2010) further investigated the effects...

Step 2

When two documents have the same date, but different secondary authors, provide as many authors' surnames as needed to differentiate the two items. This trick only works when you have multiple authors for a document. If you have two items with the same dates and authors, head to the next step.

Example

Lee, Harrison, Moore, Rogers, et al. (2008) studied...

Lee, Harrison, Moore, Walker, et al. (2008) provided evidence of...

Step 3

When two documents have the same date and same authors, include a lowercase letter after the dates for both items.

Example

White (2007a) once described...

White (2007b) complemented his research with...