Answer:

If you aren't sure which citation style to use, be sure to ask your professors which style they prefer for assignments. 7th Edition.

Explanation:

For APA the reference list is arranged in alphabetical order of authors' surnames. Arrange by first author's name, then by second author if you have the same first author, etc. (check the page on Authors for how to lay out the reference if you have more than one author).

hope this helps :)