Cita APA (7th ed.)

United Nations. Department of International Economic and Social Affairs. (1999). World population prospects: The 1998 revision. United Nations.

Cita Chicago (17th ed.)

United Nations. Department of International Economic and Social Affairs. World Population Prospects: The 1998 Revision. New York: United Nations, 1999.

Cita MLA (9th ed.)

United Nations. Department of International Economic and Social Affairs. World Population Prospects: The 1998 Revision. United Nations, 1999.