Cita APA

United Nations. Department of International Economic and Social Affairs. (1989). Prospects of world urbanization, 1988. United Nations.

Citación estilo Chicago

United Nations. Department of International Economic and Social Affairs. Prospects of World Urbanization, 1988. New York: United Nations, 1989.

Cita MLA

United Nations. Department of International Economic and Social Affairs. Prospects of World Urbanization, 1988. United Nations, 1989.