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Google圖書搜尋
Improvement of Beef Cattle Through Breeding Methods
Keith Edward Gregory
Robert Whitmore Goss
其他書名
Summary of Results from Regional Project NC-1
出版
University of Nebraska, College of Agriculture, The Agricultural Experiment Station
, 1960
URL
http://books.google.com.hk/books?id=38OFAQAACAAJ&hl=&source=gbs_api