APA (7th ed.) Citation

(2009). World population prospects, Vol. 2., Sex and age distribution of the world population: The 2008 revision. United Nations.

Chicago Style (17th ed.) Citation

World Population Prospects, Vol. 2., Sex and Age Distribution of the World Population: The 2008 Revision. New York: United Nations, 2009.

MLA (9th ed.) Citation

World Population Prospects, Vol. 2., Sex and Age Distribution of the World Population: The 2008 Revision. United Nations, 2009.

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