Diseases of poultry. Ed 9 - B.W. Calnek; H.John Barnes C.W. Beard W.M. Reid H.W. Yoder, Jr (Delhi Affiliated East-West Press, 1994)
B.W. Calnek; H.John Barnes; C.W. Beard; W.M. Reid & H.W. Yoder, Jr: Diseases of poultry. Ed 9. (9th Ed) Delhi. Affiliated East-West Press, Iowa State University Press, 1994. 81-85938-17-2--(636.50896CAL)
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