APA
United Nations Department of Economic and Social Affairs, . (1990). International Standard Industrial Classification of All Economic Activities. Third Revision. New York: .
Chicago
United Nations Department of Economic and Social Affairs, . 1990. International Standard Industrial Classification of All Economic Activities. Third Revision. New York: .
Harvard
United Nations Department of Economic and Social Affairs, . (1990). International Standard Industrial Classification of All Economic Activities. Third Revision. New York: .
MLA
United Nations Department of Economic and Social Affairs, . International Standard Industrial Classification of All Economic Activities. Third Revision. New York: . 1990.
BookSeries: Statistical Papers / Series M.Publisher: New York, 1990Description: 187 S. ; 30cm.