George W. Trimberger Dairy Cattle Judging Techniques. Ed 4 - 4th Ed - 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 Dewey Class. No.: 636.20811 / TRI