APA (7th ed.) Zitazioa
Greene, R. (2012). Mastery. Profile Books.
Chicago Style (17th ed.) Zitazioa
Greene, Robert. Mastery. London: Profile Books, 2012.
MLA (9th ed.) Zitazioa
Greene, Robert. Mastery. Profile Books, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.