National Research Council (Estados Unidos). Subcommittee on Poultry Nutrition, & National Research Council (Estados Unidos). Subcommittee on Poultry Nutrition. (1977). Nutrient requirements of poultry (7. rev. edición.). Washington, D.C.: National Academy of Sciences.
Citación estilo ChicagoNational Research Council (Estados Unidos). Subcommittee on Poultry Nutrition, y National Research Council (Estados Unidos). Subcommittee on Poultry Nutrition. Nutrient Requirements of Poultry. 7. rev. edición. Washington, D.C.: National Academy of Sciences, 1977.
Cita MLANational Research Council (Estados Unidos). Subcommittee on Poultry Nutrition, y National Research Council (Estados Unidos). Subcommittee on Poultry Nutrition. Nutrient Requirements of Poultry. 7. rev. edición. Washington, D.C.: National Academy of Sciences, 1977.