Cita APA

Department of Economic and Social Affairs. (2002). World population ageing. New York: United Nations.

Citación estilo Chicago

Department of Economic and Social Affairs. World Population Ageing. New York: United Nations, 2002.

Cita MLA

Department of Economic and Social Affairs. World Population Ageing. New York: United Nations, 2002.

Precaución: Estas citas no son 100% exactas.