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Google圖書搜尋
Nutrient Requirements of Beef Cattle
Board on Agriculture. Subcommittee on Beef Cattle Nutrition
National Research Council (U.S.). Committee on Animal Nutrition
出版
National Academy of Sciences-National Research Council
, 1963
URL
http://books.google.com.hk/books?id=pQpYyQEACAAJ&hl=&source=gbs_api