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  1. Critical Trends Assessment Program : 2001 report.
    By: Illinois. - Critical Trends Assessment Project.
    Publication info: Springfield, Ill. :Illinois Dept. of Natural Resources,2002.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Ecosystem management  Environmental monitoring  Illinois  Natural resources surveys  
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  2. Critical trends assessment Program 2002 report
    By: Illinois. - Critical Trends Assessment Project.
    Publication info: [Illinois] :Illinois Dept. of Energy and Natural Resources, Office of Realty and Environmental Palnning :2002
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Critical Trends Assessment Project  Ecosystem management  Environmental monitoring  Illinois  Natural resources surveys  
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  3. Critical trends assessment Program 2003-04 report
    By: Illinois. - Critical Trends Assessment Project.
    Publication info: [Illinois] :Illinois Dept. of Natural Resources, Office of Realty and Environmental Palnning :Dec. 2004
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Critical Trends Assessment Project  Ecosystem management  Environmental monitoring  Illinois  Natural resources surveys  
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  4. Illinois River Bluffs area assessment / Illinois Department of Natural Resources, Office of Scientific Research and Analysis, [and the] State Geological Survey Division.
    By: Illinois. - Critical Trends Assessment Project. - Illinois State Geological Survey.
    Publication info: Springfield, Ill. :Illinois Dept. of Natural Resources,1998-
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Illinois  Illinois River Watershed  Illinois River Watershed (Ill.)  Natural resources conservation areas  Natural resources surveys  
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  5. Rock River area assessment / Illinois Department of Natural Resources, Office of Scientific Research and Analysis, Natural History Survey Division, in conjunction with State Geological Survey Division.
    By: Illinois. - Illinois State Geological Survey.
    Publication info: Springfield, IL :Illinois Dept. of Natural Resources,1996-
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Illinois  Natural areas  Natural resources  Natural resources surveys  Rock River  Rock River Region (Wis. and Ill.)  Rock River Watershed (Wis. and Ill.)  
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