APA (7th ed.) Citation

United Nations. Department of International Economic and Social Affairs. (1989). World population at the turn of the century. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Department of International Economic and Social Affairs. World Population at the Turn of the Century. New York: United Nations, 1989.

MLA (9th ed.) Citation

United Nations. Department of International Economic and Social Affairs. World Population at the Turn of the Century. United Nations, 1989.

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