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By: Illinois. Dept. of Natural Resources.Edition:Publication info: [Springfield, Ill.], Illinois Dept. of Natural Resources, [2007]Volume:Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Conservation of natural resources Critical Trends Assessment Program Dept. of Natural Resources Ecosystem management Illinois Law and legislation Research Water conservation Water quality management WatershedsBHL Collections:
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By: Illinois. Dept. of Natural Resources.Edition:Publication info: [Springfield, Ill.], Illinois Dept. of Natural Resources, [2001]Volume:Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Conservation of natural resources Critical Trends Assessment Program Dept. of Natural Resources Ecosystem management Illinois Law and legislation Research Water conservation Water quality management WatershedsBHL Collections: