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  1. Bat use of abandoned mines in the Pryor Mountains : a report to Montana Department of Environmental Quality, Mine Waste Cleanup Bureau / submitted by Paul Hendricks and John Carlson.
    By: Hendricks, P. - Hendricks, Paul. - Carlson, John C. - Carlson, John. - Montana Natural Heritage Program. - Montana.
    Publication info: [Helena] :Montana Natural Heritage Program,[2001]
    Contributed by: Montana State Library (archive.org)
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  2. Grassland bird surveys in north Valley County, Montana : 2001-2006 /
    By: Hendricks, Paul, - Carlson, John. - Currier, Coburn, - Lenard, Susan. - Montana Natural Heritage Program.
    Publication info: Helena, MT :Montana Natural Heritage Program,c2007.
    Contributed by: Montana State Library (archive.org)
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  3. Surveys for grassland birds of the Malta Field Office-BLM, including a seven-year study in north Valley County /
    By: Carlson, John. - Currier, Coburn. - Hendricks, P. - Lenard, Susan. - Maxell, Bryce A. - Montana Natural Heritage Program.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,c2008.
    Contributed by: Montana State Library (archive.org)
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