Clarence H Eckles. (1956). Dairy cattle and milk production (5th.). New York.
Chicago Stili AlıntıClarence H Eckles. Dairy Cattle and Milk Production. 5th. New York, 1956.
MLA AlıntıClarence H Eckles. Dairy Cattle and Milk Production. 5th. New York, 1956.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..