Yapp, W. W., & Nevens, W. B. (1955). Dairy cattle: Selection, feeding and management (4th ed.). Wiley.
Čikaški stil citiranja (17. izdanje)Yapp, William Wodin, i W. B. Nevens. Dairy Cattle: Selection, Feeding and Management. 4th ed. New York: Wiley, 1955.
MLA način citiranja (8. izdanje)Yapp, William Wodin, i W. B. Nevens. Dairy Cattle: Selection, Feeding and Management. 4th ed. Wiley, 1955.
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