APA (7th ed.) Zitazioa

(1969). Child welfare: Services and perspectives.

Chicago Style (17th ed.) Zitazioa

Child Welfare: Services and Perspectives. 1969.

MLA (9th ed.) Zitazioa

Child Welfare: Services and Perspectives. 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.