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Optimum Rate of Concentrate to Alfalfa Hay for Steers as Affected by Protein Level and Method of Feeding

Thomas Byron KeithW. P. LehrerReuben Fredric Johnson

出版	Agricultural Experiment Station of the University of Idaho, 1954
URL	http://books.google.com.hk/books?id=b3EkAQAAMAAJ&hl=&source=gbs_api