APA (7th ed.) Zitazioa

Vaught. Compulsory. University of Minnesota Press.

Chicago Style (17th ed.) Zitazioa

Vaught. Compulsory. University of Minnesota Press.

MLA (9th ed.) Zitazioa

Vaught. Compulsory. University of Minnesota Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.