Dairy Cattle Judging Techniques. Ed 4 - George W. Trimberger; William M. Etgen David M. Gaton (California Prentice Hall, Inc, 1987)
George W. Trimberger; William M. Etgen & David M. Gaton: Dairy Cattle Judging Techniques. Ed 4. (4th Ed) California. Prentice Hall, Inc, 1987.--(636.20811TRI)
ENGLISH