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Blackleg : its nature, cause, and prevention
- Nörgaard, Victor A., Mohler, John R., United States Bureau of Animal Industry, and United States Department of Agriculture
- Circular (United States. Bureau of Animal Industry) ; no. 31 1919
- Blackleg in cattle, Blackleg in sheep, Cattle -- Diseases -- Prevention, and Sheep -- Diseases -- Prevention
- 22 pages : illustration ; 24 cm.
- U.S. Dept. of Agriculture, Bureau of Animal Industry
- Organic Roots Collection