APA (7th ed.) Zitazioa
ebrary, Inc. (2001). Nutrient requirements of dairy cattle (7th rev. ed.). National Academy Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Nutrient Requirements of Dairy Cattle. 7th rev. ed. Washington, D.C.: National Academy Press, 2001.
MLA (9th ed.) Zitazioa
ebrary, Inc. Nutrient Requirements of Dairy Cattle. 7th rev. ed. National Academy Press, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.