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By: Heidinger, Roy C. - Lewis, William M. (William Madison), - Illinois. Dept. of Energy and Natural Resources.Edition:Publication info: Springfield, Ill, Illinois Dept. of Energy and Natural Resources, [1983]Volume: Document (Illinois. Dept. of Energy and Natural ReSeries:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Ammonia Chlorine Environmental aspects Illinois Sewage Stream ecologyBHL Collections: