APA引文

Pugel, T. A. (2020). International Economics. New York: Mc Graw Hill Higher Education.

Trích dẫn kiểu Chicago

Pugel, Thomas A. International Economics. New York: Mc Graw Hill Higher Education, 2020.

MLA引文

Pugel, Thomas A. International Economics. New York: Mc Graw Hill Higher Education, 2020.

警告：這些引文格式不一定是100％准確.