APA Citation

(1973). World sulphur supply and demand 1960-1980. New york: United Nations.

Chicago Style Citation

World Sulphur Supply and Demand 1960-1980. New york: United Nations, 1973.

MLA Citation

World Sulphur Supply and Demand 1960-1980. New york: United Nations, 1973.

Warning: These citations may not always be 100% accurate.