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  1. Abundance and distribution of bats in the Pryor Mountains of south central Montana / David J. Worthington and H. Nelson Ross.
    By: Worthington, David J. - Ross, H. Nelson. - Custer National Forest (Agency : U.S.) - Montana Natural Heritage Program. - Montana Nature Conservancy. - United States. - University of Montana--Missoula.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,[1990]
    Contributed by: Montana State Library (archive.org)
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