APA (7th ed.) Zitazioa
(1980). Christianity and other religions. Collins.
Chicago Style (17th ed.) Zitazioa
Christianity and Other Religions. Great Britain: Collins, 1980.
MLA (9th ed.) Zitazioa
Christianity and Other Religions. Collins, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.