National Research Council (U.S.) Subcommittee on Dairy Cattle Nutrition. (1988). Nutrient requirements of dairy cattle (6th rev. ed.). National Academy Press.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.) Subcommittee on Dairy Cattle Nutrition. Nutrient Requirements of Dairy Cattle. 6th rev. ed. Washington, D.C: National Academy Press, 1988.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.) Subcommittee on Dairy Cattle Nutrition. Nutrient Requirements of Dairy Cattle. 6th rev. ed. National Academy Press, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.