APA (7th ed.) Zitazioa
Dulles, A. (1978). Models of the church. Image.
Chicago Style (17th ed.) Zitazioa
Dulles, Avery. Models of the Church. New York: Image, 1978.
MLA (9th ed.) Zitazioa
Dulles, Avery. Models of the Church. Image, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.