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  1. By: Champlin, Manley.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1914.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Champlin, Manley. - South Dakota agricultural college, Brookings.
    Publication info: [Watertown, S.D.,Public opinion pub. co.]c1917.
    Holding Institution: Library of Congress