APA引文

Krugman, P. (1991). Trade with Japan. Chicago: The University of Chicago.

Trích dẫn kiểu Chicago

Krugman, Paul. Trade With Japan. Chicago: The University of Chicago, 1991.

MLA引文

Krugman, Paul. Trade With Japan. Chicago: The University of Chicago, 1991.

警告：這些引文格式不一定是100％准確.