APA (7th ed.) Zitazioa
Sproul, R. C. (1983). In search of dignity. Regal Books.
Chicago Style (17th ed.) Zitazioa
Sproul, R. C. In Search of Dignity. Califonia: Regal Books, 1983.
MLA (9th ed.) Zitazioa
Sproul, R. C. In Search of Dignity. Regal Books, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.