APA (7th ed.) Citation

United Nations. Industrial Development Organization & Horseman, M. N. J. (1973). World sulphur supply and demand 1960-1980. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Industrial Development Organization and M. N. J. Horseman. World Sulphur Supply and Demand 1960-1980. New York: United Nations, 1973.

MLA (9th ed.) Citation

United Nations. Industrial Development Organization and M. N. J. Horseman. World Sulphur Supply and Demand 1960-1980. United Nations, 1973.