Dairy cattle feeding and management
Etgen, William M
Dairy cattle feeding and management - 7th ed. - New York John Wiley 1987 - 598 p.
0471808911
Animal husbandry
636.2142 / ETG
Dairy cattle feeding and management - 7th ed. - New York John Wiley 1987 - 598 p.
0471808911
Animal husbandry
636.2142 / ETG