National Research Council (USA) Subcommittee on Dairy Cattle Nutrition. (1967). Nutrient requirements of dairy cattle (3., rev. ed.). National Acad. of Sciences.
Chicago-Zitierstil (17. Ausg.)National Research Council (USA) Subcommittee on Dairy Cattle Nutrition. Nutrient Requirements of Dairy Cattle. 3., rev. ed. Washington, D.C: National Acad. of Sciences, 1967.
MLA-Zitierstil (9. Ausg.)National Research Council (USA) Subcommittee on Dairy Cattle Nutrition. Nutrient Requirements of Dairy Cattle. 3., rev. ed. National Acad. of Sciences, 1967.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.