Dairy cattle judging techniques
Etgen, William M Trimberger, George W
Dairy cattle judging techniques - 3rd ed. - Englewood cliffs Prentice - Hall 1983 - xii, 340p.; ill 22cm.
Dairy cattle judging techniques - 3rd ed. - Englewood cliffs Prentice - Hall 1983 - xii, 340p.; ill 22cm.