APA (7th ed.) Citation

Union of International Associations. (1991). Encyclopedia of world problems and human potential (3rd ed.). K.G. Saur.

Chicago Style (17th ed.) Citation

Union of International Associations. Encyclopedia of World Problems and Human Potential. 3rd ed. New York: K.G. Saur, 1991.

MLA (9th ed.) Citation

Union of International Associations. Encyclopedia of World Problems and Human Potential. 3rd ed. K.G. Saur, 1991.