APA引文

Krugman, P. R. (1988). Strategic trade policy and the new international economics. London: The MIT Press.

Trích dẫn kiểu Chicago

Krugman, Paul R. Strategic Trade Policy and the New International Economics. London: The MIT Press, 1988.

MLA引文

Krugman, Paul R. Strategic Trade Policy and the New International Economics. London: The MIT Press, 1988.

警告：這些引文格式不一定是100％准確.