APA aipamena

United Nations. Department of International Economic and Social Affairs. (2002). National population policies 2001. United Nations.

Chicago Style aipamena

United Nations. Department of International Economic and Social Affairs. National Population Policies 2001. New York: United Nations, 2002.

MLA aipamena

United Nations. Department of International Economic and Social Affairs. National Population Policies 2001. United Nations, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.