History of hog cholera research in the U.S. Department of Agriculture, Supplement.
Research work on hog cholera as reported in the annual reports of the chiefs of the former Bureau of Animal Industry, 1903-53.

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Item Link Original Source
Full view   Purdue University
Full view   University of California
Full view   v.241(1962) University of Illinois at Urbana-Champaign
Full view   v.241 SUP.(1962) University of Illinois at Urbana-Champaign