United Nations. Conference on Trade and Development. Secretariat & United Nations. Conference on Trade and Development. Special Committee on Prefernces. (1974). Operation and effects of the genaralized system of preference: Selected studies submitted to the fifth session of the Special Committee on Preferences, Geneva, 3-13 April, 1973. United Nations.
Chicago-referens (17:e uppl.)United Nations. Conference on Trade and Development. Secretariat och United Nations. Conference on Trade and Development. Special Committee on Prefernces. Operation and Effects of the Genaralized System of Preference: Selected Studies Submitted to the Fifth Session of the Special Committee on Preferences, Geneva, 3-13 April, 1973. New York: United Nations, 1974.
MLA-referens (9:e uppl.)United Nations. Conference on Trade and Development. Secretariat och United Nations. Conference on Trade and Development. Special Committee on Prefernces. Operation and Effects of the Genaralized System of Preference: Selected Studies Submitted to the Fifth Session of the Special Committee on Preferences, Geneva, 3-13 April, 1973. United Nations, 1974.