Lua APA (7ú heag.)

Yapp, W. W., & Nevens, W. B. (1955). Dairy cattle: Selection, feeding and management (4th ed.). Wiley.

Lua i Stíl Chicago (17ú heag.)

Yapp, William Wodin, agus W. B. Nevens. Dairy Cattle: Selection, Feeding and Management. 4th ed. New York: Wiley, 1955.

Lua MLA (8ú heag.)

Yapp, William Wodin, agus W. B. Nevens. Dairy Cattle: Selection, Feeding and Management. 4th ed. Wiley, 1955.

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