APA引文

Opotowsky, S. (1961). The Kennedy government. New York: Dutton.

Trích dẫn kiểu Chicago

Opotowsky, Stan. The Kennedy Government. New York: Dutton, 1961.

MLA引文

Opotowsky, Stan. The Kennedy Government. New York: Dutton, 1961.

警告：這些引文格式不一定是100％准確.