APA
UNITED NATIONS I. E. A. S. A. (. o., UNITED NATIONS I. E. A. S. A. (. o., . (1991). Commodity trade statitics. New York: UN.
Chicago
UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Department of, UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Department of, . 1991. Commodity trade statitics. New York: UN.
Harvard
UNITED NATIONS I. E. A. S. A. (. o., UNITED NATIONS I. E. A. S. A. (. o., . (1991). Commodity trade statitics. New York: UN.
MLA
UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Department of, UNITED NATIONS INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Department of, . Commodity trade statitics. New York: UN. 1991.
