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The Minimum Protein Requirements of Cattle

National Research Council (U.S.). Committee on Animal NutritionHarold Hanson Mitchell

其他書名	Report of Committee on Animal Nutrition
出版	National research council of the National academy of sciences, 1929
URL	http://books.google.com.hk/books?id=oMc9AQAAIAAJ&hl=&source=gbs_api