APA引文

Herwood, R. E. (1948). Roosevelt and hopkins: An intimate history. New York: Harper & Brothers.

Trích dẫn kiểu Chicago

Herwood, Robert E. Roosevelt and Hopkins: An Intimate History. New York: Harper & Brothers, 1948.

MLA引文

Herwood, Robert E. Roosevelt and Hopkins: An Intimate History. New York: Harper & Brothers, 1948.

警告：這些引文格式不一定是100％准確.