Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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