APA (7th ed.) Zitazioa

Gurley. Villainous Compounds. Southern Illinois University Press.

Chicago Style (17th ed.) Zitazioa

Gurley. Villainous Compounds. Southern Illinois University Press.

MLA (9th ed.) Zitazioa

Gurley. Villainous Compounds. Southern Illinois University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.