APA (7th ed.) Zitazioa

Keller. Milking in the Shadows. Rutgers University Press.

Chicago Style (17th ed.) Zitazioa

Keller. Milking in the Shadows. Rutgers University Press.

MLA (9th ed.) Zitazioa

Keller. Milking in the Shadows. Rutgers University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.