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  1. Biological integrity of Casino Creek, 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.
    Publication info: Helena, Mont. :Montana Dept. of Environmental Quality,2000.
    Contributed by: Montana State Library (archive.org)
    Subjects: Algae  Casino Creek  Casino Creek (Fergus County, Mont.)  Groundwater  Montana  Quality  Water quality biological assessment  
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  2. Effects of an oil spill on the composition and structure of the periphyton community in Casino Creek and Big Spring Creek near Lewistown, Montana / prepared for State of Montana Department of Environmental Quality ; prepared by Loren L. Bahls.
    By: Bahls, Loren L. - Montana.
    Publication info: Helena, Mont. :[Montana Dept. of Environmental Quality],1999.
    Contributed by: Montana State Library (archive.org)
    Subjects: Algae  Big Spring Creek  Big Spring Creek (Fergus County, Mont.)  Casino Creek  Casino Creek (Fergus County, Mont.)  Environmental aspects  Groundwater  Montana  Oil spills  Quality  Water quality biological assessment  
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