APA Баримт

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

Чикаго маягийн жагсаалт

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

MLA ишлэл

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

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