APA引文

United Nations. (1970). The measurement of development effort: Study. New York: United Nations.

Trích dẫn kiểu Chicago

United Nations. The Measurement of Development Effort: Study. New York: United Nations, 1970.

MLA引文

United Nations. The Measurement of Development Effort: Study. New York: United Nations, 1970.

警告：這些引文格式不一定是100％准確.