Lua APA (7ú heag.)

ebrary, Inc. (2001). Nutrient requirements of dairy cattle (7th rev. ed.). National Academy Press.

Lua i Stíl Chicago (17ú heag.)

ebrary, Inc. Nutrient Requirements of Dairy Cattle. 7th rev. ed. Washington, D.C.: National Academy Press, 2001.

Lua MLA (9ú heag.)

ebrary, Inc. Nutrient Requirements of Dairy Cattle. 7th rev. ed. National Academy Press, 2001.

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