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Antibiotic Feed and Vitamin B12 Supplements for Lactating Dairy Cows

M. O. Haq, L. L. Rusoff and A. J. Gelpi
Science
New Series, Vol. 115, No. 2982 (Feb. 22, 1952), pp. 215-216
Stable URL: http://www.jstor.org/stable/1679676
Page Count: 2
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