APA (7th ed.) Citation
(1992). Commodity Trade Statistics 1991 (1. ed.). United Nations.
Chicago Style (17th ed.) Citation
Commodity Trade Statistics 1991. 1. ed. New York: United Nations, 1992.
MLA (9th ed.) Citation
Commodity Trade Statistics 1991. 1. ed. United Nations, 1992.
Warning: These citations may not always be 100% accurate.