Cita APA

population. (2011). United Nations Demographic Year Book: 2009-2010. United Nations.

Chicago Edition Citation

population. United Nations Demographic Year Book: 2009-2010. New York: United Nations, 2011.

Cita MLA

population. United Nations Demographic Year Book: 2009-2010. United Nations, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.