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  1. By: Gardner, William M. (William Michael) - Berg, Rodney K. - Montana. Ecological Services Division. - United States. Bureau of Land Management. - United States. Bureau of Land Management. Lewistown District.
    Publication info: Great Falls? Mont, Montana Dept. of Fish, Wildlife and Parks, Ecological Services Division, [1983]
    Holding Institution: Montana State Library
    Subjects: Aquatic invertebrates  Effect of dams on  Fish populations  Fishes  Marias River  Marias River (Mont.)  Montana  Temperature