APA
UNITED NATIONS E. A. S. D. (. o., UNITED NATIONS E. A. S. D. (. o., . (1992). Commodity trade statistics, 1991. New York: United Nations.
Chicago
UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Department of---), UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Department of---), . 1992. Commodity trade statistics, 1991. New York: United Nations.
Harvard
UNITED NATIONS E. A. S. D. (. o., UNITED NATIONS E. A. S. D. (. o., . (1992). Commodity trade statistics, 1991. New York: United Nations.
MLA
UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Department of---), UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Department of---), . Commodity trade statistics, 1991. New York: United Nations. 1992.
