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  1. A preliminary survey of the bats of the Deerlodge National Forest Montana : 1991 /
    By: Butts, Thomas W. - Beaverhead-Deerlodge National Forest (Agency : U.S.) - Montana Natural Heritage Program.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,[c1993]
    Holding Institution: Montana State Library (archive.org)
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  2. A survey of the bats of the Deerlodge National Forest Montana : 1992 /
    By: Butts, Thomas W. - Beaverhead-Deerlodge National Forest (Agency : U.S.) - Montana Natural Heritage Program.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,[c1993]
    Holding Institution: Montana State Library (archive.org)
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  3. A survey of the bats of the Townsend Ranger District Helena National Forest, Montana /
    By: Butts, Thomas W. - Helena National Forest (Agency : U.S.) - Montana Natural Heritage Program.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,[c1993]
    Holding Institution: Montana State Library (archive.org)
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  4. Wolverine (Gulo gulo) biology and management : a literature review and annotated bibliography /
    By: Butts, Thomas W. - United States. Forest Service. - United States. Forest Service. Northern Region. Threatened, Endangered, and Sensitive Program.
    Publication info: [Missoula?, Mont.] :The Program,[1992]
    Holding Institution: Montana State Library (archive.org)
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