APA (7th ed.) Citation

United Nations. Dept. of Economic and Social Affairs. Population Division. (2007). World population ageing 2007. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Dept. of Economic and Social Affairs. Population Division. World Population Ageing 2007. New York: United Nations, 2007.

MLA (9th ed.) Citation

United Nations. Dept. of Economic and Social Affairs. Population Division. World Population Ageing 2007. United Nations, 2007.

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