APA引文

(1990). An outline of American government. New York: United States Information Agency.

Trích dẫn kiểu Chicago

An Outline of American Government. New York: United States Information Agency, 1990.

MLA引文

An Outline of American Government. New York: United States Information Agency, 1990.

警告：這些引文格式不一定是100％准確.