APA引文

Wightman, D. (1971). The economic interest of the industrial countries in the development of the third world. New York: United Nations.

Trích dẫn kiểu Chicago

Wightman, David. The Economic Interest of the Industrial Countries in the Development of the Third World. New York: United Nations, 1971.

MLA引文

Wightman, David. The Economic Interest of the Industrial Countries in the Development of the Third World. New York: United Nations, 1971.

警告：這些引文格式不一定是100％准確.