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  1. By: Knight, Wilbur C. (Wilbur Clinton), - Osborn, Henry Fairfield, - Wortman, J. L. (Jacob Lawson),
    Publication info: 1898
    Holding Institution: American Museum of Natural History Library
  2. By: Knight, Wilbur C. (Wilbur Clinton),
    Publication info: [Laramie, Wyoming Experiment Station], 1902
    Holding Institution: Cornell University Library
  3. By: Knight, Wilbur C. (Wilbur Clinton),
    Publication info: Laramie, Wyo, Wyoming Experiment Station, 1902
    Holding Institution: American Museum of Natural History Library
  1. By: Knight, Wilbur C. (Wilbur Clinton),
    Type: Article
    In: The Auk
    Volume: 20
    Date: 1903
    Page Range: 82--83
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-