APA (7th ed.) Zitazioa

National Research Council (U.S.). Subcommittee on Sheep Nutrition. (1985). Nutrient requirements of sheep (6th rev. ed.). National Academy Press.

Chicago Style (17th ed.) Zitazioa

National Research Council (U.S.). Subcommittee on Sheep Nutrition. Nutrient Requirements of Sheep. 6th rev. ed. Washington, D.C.: National Academy Press, 1985.

MLA (9th ed.) Zitazioa

National Research Council (U.S.). Subcommittee on Sheep Nutrition. Nutrient Requirements of Sheep. 6th rev. ed. National Academy Press, 1985.