Cita APA

(1999). United Nations conference on trade and development: Handbook of world mineral trade statistics 1991 - 1996. New York: United Nations.

Citación estilo Chicago

United Nations Conference On Trade and Development: Handbook of World Mineral Trade Statistics 1991 - 1996. New York: United Nations, 1999.

Cita MLA

United Nations Conference On Trade and Development: Handbook of World Mineral Trade Statistics 1991 - 1996. New York: United Nations, 1999.