APA (7th ed.) Zitazioa

Hart. American Dictators. Rutgers University Press.

Chicago Style (17th ed.) Zitazioa

Hart. American Dictators. Rutgers University Press.

MLA (9th ed.) Zitazioa

Hart. American Dictators. Rutgers University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.