APA引文

Richard Henry Popkin. (1993). Philosophy made simple. New York: Doubleday.

Trích dẫn kiểu Chicago

Richard Henry Popkin. Philosophy Made Simple. New York: Doubleday, 1993.

MLA引文

Richard Henry Popkin. Philosophy Made Simple. New York: Doubleday, 1993.

警告：這些引文格式不一定是100％准確.