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  1. Biological integrity of the Judith River, Fergus County, Montana based on the composition and structure of the Benthic algae community / prepared for State of Montana Department of Environmental Quality ; prepared by Loren L. Bahls.
    By: Bahls, Loren L. - Montana. Dept. of Environmental Quality.
    Publication info: Helena, Mont. :Montana Dept. of Environmental Quality,2000.
    Contributed by: Montana State Library (
    Subjects: Algae  Groundwater  Judith River  Judith River (Mont.)  Montana  Quality  Water quality biological assessment  
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