APA (7th ed.) Zitazioa
Unger, M. F. (1968). The haunting of Bishop Pike: A Christian view of the other side. Tyndale House publishers.
Chicago Style (17th ed.) Zitazioa
Unger, Merrill F. The Haunting of Bishop Pike: A Christian View of the Other Side. Wheaton: Tyndale House publishers, 1968.
MLA (9th ed.) Zitazioa
Unger, Merrill F. The Haunting of Bishop Pike: A Christian View of the Other Side. Tyndale House publishers, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.