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Google圖書搜尋
Cow Testing Associations with Some Notes on the Sampling and Testing of Milk
John Archibald Ruddick
C. F. Whitley
出版
Department of Agriculture, Dairy and Cold Storage Commissioner's Branch
, 1910
URL
http://books.google.com.hk/books?id=p6axswEACAAJ&hl=&source=gbs_api