APA (7th ed.) Zitazioa
Howard, A. (1942). An agricultural testament (Special Rodale Press ed.). Rodale Press.
Chicago Style (17th ed.) Zitazioa
Howard, Albert. An Agricultural Testament. Special Rodale Press ed. [Emmaus, Pa.]: Rodale Press, 1942.
MLA (9th ed.) Zitazioa
Howard, Albert. An Agricultural Testament. Special Rodale Press ed. Rodale Press, 1942.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.