APA
United Nations Conference on Trade and Development, . (2000). Trade agreements, petroleum and energy policies. New York: United Nations.
Chicago
United Nations Conference on Trade and Development, . 2000. Trade agreements, petroleum and energy policies. New York: United Nations.
Harvard
United Nations Conference on Trade and Development, . (2000). Trade agreements, petroleum and energy policies. New York: United Nations.
MLA
United Nations Conference on Trade and Development, . Trade agreements, petroleum and energy policies. New York: United Nations. 2000.