National Research Council (U.S.). Subcommittee on Beef Cattle Nutrition. (1996). Nutrient requirements of beef cattle (7th rev. ed.). National Academy Press.

National Research Council (U.S.). Subcommittee on Beef Cattle Nutrition. Nutrient Requirements of Beef Cattle. 7th rev. ed. Washington, D.C.: National Academy Press, 1996.

National Research Council (U.S.). Subcommittee on Beef Cattle Nutrition. Nutrient Requirements of Beef Cattle. 7th rev. ed. National Academy Press, 1996.