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Google圖書搜尋
Judging Dairy Cattle on the Basis of Type and Records of Production
Walter Whittier Swett
R. R. Graves
出版
U.S. Department of Agriculture
, 1941
URL
http://books.google.com.hk/books?id=6KFtuWzIcbUC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
An important feature of the dairy cattle show ring is the opportunity it affords for inspiring the dairyman to improve his stock, by holding up to him an ideal toward which to work.
