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By: Gatz, Donald F. - Wiley, Susan T. - Chu, Lih-Ching. - 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:BHL Collections: