APA引文

(1997). United Nations conference on trade and development: Handbook of world mineral trade statistics 1990 - 1995. New York: United Nations.

Trích dẫn kiểu Chicago

United Nations Conference On Trade and Development: Handbook of World Mineral Trade Statistics 1990 - 1995. New York: United Nations, 1997.

MLA引文

United Nations Conference On Trade and Development: Handbook of World Mineral Trade Statistics 1990 - 1995. New York: United Nations, 1997.

警告：這些引文格式不一定是100％准確.