APA引文

Ingram, J. C. (1978). International economic problem. New York: John Wiely and Sons.

Trích dẫn kiểu Chicago

Ingram, James C. International Economic Problem. New York: John Wiely and Sons, 1978.

MLA引文

Ingram, James C. International Economic Problem. New York: John Wiely and Sons, 1978.

警告：這些引文格式不一定是100％准確.