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Google圖書搜尋
Factors Affecting the Weaning Weight of Range Calves
Fentress McCoughan Peacock
W. G. Kirk
Marvin Koger
出版
University of Florida, Agricultural Experiment Stations
, 1960
URL
http://books.google.com.hk/books?id=j4lkngEACAAJ&hl=&source=gbs_api