APA (7th ed.) Zitazioa

Mitchell. They Saved the Crops. University of Georgia Press.

Chicago Style (17th ed.) Zitazioa

Mitchell. They Saved the Crops. University of Georgia Press.

MLA (9th ed.) Zitazioa

Mitchell. They Saved the Crops. University of Georgia Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.