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  1. By: Hutchison, Samuel Blair, - Kemp, Paul D.
    Publication info: Washington :U. S. G.P.O. :1952.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Hutchison, Samuel Blair,
    Publication info: Ogden, Utah :Intermountain Forest and Range Experiment Station,[1962]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library