National Research Council (U.S.). Subcommittee on Beef Cattle Nutrition. (1996). Nutrient requirements of beef cattle (7th rev. ed.). National Academy Press.
Citação norma ChicagoNational Research Council (U.S.). Subcommittee on Beef Cattle Nutrition. Nutrient Requirements of Beef Cattle. 7th rev. ed. Washington, D.C.: National Academy Press, 1996.
Citação norma MLANational Research Council (U.S.). Subcommittee on Beef Cattle Nutrition. Nutrient Requirements of Beef Cattle. 7th rev. ed. National Academy Press, 1996.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.