APA
(1997). International trade statistics yearbook 1996.V.1.Trade by country. New York: Department of Economic and Social affairs.
Chicago
1997. International trade statistics yearbook 1996.V.1.Trade by country. New York: Department of Economic and Social affairs.
Harvard
(1997). International trade statistics yearbook 1996.V.1.Trade by country. New York: Department of Economic and Social affairs.
MLA
International trade statistics yearbook 1996.V.1.Trade by country. New York: Department of Economic and Social affairs. 1997.