APA引文

Gunther, J. (1950). Roosevelt in retrospect: A profile in history. New York: Harper & Brothers, Publishers.

Trích dẫn kiểu Chicago

Gunther, John. Roosevelt in Retrospect: A Profile in History. New York: Harper & Brothers, Publishers, 1950.

MLA引文

Gunther, John. Roosevelt in Retrospect: A Profile in History. New York: Harper & Brothers, Publishers, 1950.

警告：這些引文格式不一定是100％准確.