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  1. List of North Dakota birds : found in the Big Coulee, Turtle Mountains and Devils lake region. As noted during the years 1890 to 1896 and verified in the subsequent years to date / by Elmer T. Judd.
    By: Judd, Elmer T.
    Publication info: Cando, N.D.,1917.
    Contributed by: University of California Libraries (archive.org)
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  2. List of North Dakota birds : found in the Big Coulee, Turtle Mountains and Devils Lake region, as noted during the years 1890 to 1896 and verified in the subsequent years to date / by Elmer T. Judd.
    By: Judd, Elmer T.
    Publication info: Cando, N.D. :Published by the author,1917.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
    View Book