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APA Style 7th Edition

Date

Date Type Details In-Text Citations
Year You will use the year of the resource in the in-text citation. Even if there is a more detailed date provided, only the year is included in the in-text citation. (Smith, 2019)
No Date

If there is no date for a reference, use the abbreviation n.d.

(Santa Fe College, n.d.). 

Smith (n.d.) states that…

Same Author/Date

If you have two or more distinct works by the same author and published in the same year, differentiate them with letters. Letters will be assigned alphabetically by the order in which they are listed in the references list.

 

 

 

 

If both items are using n.d. instead of a year, include a hyphen before the differentiating letter:

Rowling, J. K. (1999a). Harry Potter and the chamber of secrets. Arthur A. Levine.

(Rowling, 1999a)

 

Rowling, J. K. (1999b). Harry Potter and the prisoner of Azkaban. Arthur A. Levine.

(Rowling, 1999b)


(Santa Fe College, n.d.-a)