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  1. Marketing creamery butter /
    By: Potts, Roy C. - Meyer, Herman F.,
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1917.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  2. Marketing practices of Wisconsin and Minnesota creameries /
    By: Potts, Roy C.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1918.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  3. Marketing practices of Wisconsin and Minnesota creameries / by Roy C. Potts.
    By: Potts, Roy C.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1918.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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