APA
UNITED NATIONS, UNITED NATIONS E. A. S. A. (. o. ). S. (. & UNITED NATIONS E. A. S. A. (. o. ). S. (. (2006). Standard international trade classification.Rew Ed4. New York: United Nations.
Chicago
UNITED NATIONS, UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of ) STATISTICS (-Division) and UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of ) STATISTICS (-Division). 2006. Standard international trade classification.Rew Ed4. New York: United Nations.
Harvard
UNITED NATIONS, UNITED NATIONS E. A. S. A. (. o. ). S. (. and UNITED NATIONS E. A. S. A. (. o. ). S. (. (2006). Standard international trade classification.Rew Ed4. New York: United Nations.
MLA
UNITED NATIONS, UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of ) STATISTICS (-Division) and UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Dept of ) STATISTICS (-Division). Standard international trade classification.Rew Ed4. New York: United Nations. 2006.
