Answered By: Linda Kern Last Updated: Dec 12, 2016 Views: 1433
The formatting depends on the number of authors. This information is provided in the APA Publication Manual on p. 184. If you don't have the Manual, the Purdue OWL provides very clear instructions here: https://owl.english.purdue.edu/owl/resource/560/06/ .
If you also want to know how to cite multiple authors in the text, see p. 177 of the APA Publication Manual or the OWL: https://owl.english.purdue.edu/owl/resource/560/03/ .
Let us know if you have further questions!