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  1. By: Graf, J. E. (John Enos),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1917
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Graf, J. E. (John Enos),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Entomology, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Graf, J. E. (John Enos),
    Publication info: Washington, Govt. print. off, 1914
    Holding Institution: Library of Congress
  1. By: Graf, J. E. (John Enos),
    Type: Article
    In: The Auk
    Volume: 31
    Date: 1914
    Page Range: 421--422
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-