10 One Work Two Authors


Use the word and followed by the year in parentheses when citing a study written by two authors:

as Kurtines and Szapocznik (2003) demonstrated…


If the authors are not part of your narrative,[1] acknowledge them by writing their names joining them with an ampersand followed by the year of publication. Insert a comma between the last surname and the year.

as has been shown (Joreskog & Sorbom, 2007)

(American Psychological Association,  2010, p. 175)


  1. Narrative is referred to as non-parenthetical in: American Psychological Association (2010). Publication Manual of the American Psychological Association (6th ed.). Washington DC: Author

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