APA (7th ed.) Zitazioa
(1985). Characterological transformation: The hardwork miracle. W.W. Norton.
Chicago Style (17th ed.) Zitazioa
Characterological Transformation: The Hardwork Miracle. New York: W.W. Norton, 1985.
MLA (9th ed.) Zitazioa
Characterological Transformation: The Hardwork Miracle. W.W. Norton, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.