APA (7th ed.) Citation

United Nations Conference Ond Trade And Development. (1990). UNCTAD Commodity Yearbook 1990. United Nations.

Chicago Style (17th ed.) Citation

United Nations Conference Ond Trade And Development. UNCTAD Commodity Yearbook 1990. New York: United Nations, 1990.

MLA (8th ed.) Citation

United Nations Conference Ond Trade And Development. UNCTAD Commodity Yearbook 1990. United Nations, 1990.

Warning: These citations may not always be 100% accurate.