APA引文

American Psychological Association. (1959). Directory. New York: American Psychological Association.

Trích dẫn kiểu Chicago

American Psychological Association. Directory. New York: American Psychological Association, 1959.

MLA引文

American Psychological Association. Directory. New York: American Psychological Association, 1959.

警告：這些引文格式不一定是100％准確.