APA (7th ed.) Zitazioa
Unted Nations. (2009). Child adoption: Trends and policies. United Nations.
Chicago Style (17th ed.) Zitazioa
Unted Nations. Child Adoption: Trends and Policies. New York: United Nations, 2009.
MLA (9th ed.) Zitazioa
Unted Nations. Child Adoption: Trends and Policies. United Nations, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.