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  1. Conservation C.O.N.G.R.E.S.S. : Department of Conservation analysis of recommendations.
    By: Conservation Congress II. - Illinois.
    Publication info: Springfield, Ill. :Illinois Dept. of Conservation,1994
    Contributed by: University of Illinois Urbana Champaign
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  2. Comprehensive plan for the Illinois Nature Preserves System.
    By: Illinois Archeological Survey. - Illinois Nature Preserves Commission. - Illinois. - Illinois.
    Publication info: Rockford, Ill. :Illinois Nature Preserves Commission,1972-1973.
    Contributed by: University of Illinois Urbana Champaign
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  3. Value of mussel beds to sport fisheries, Project F-80-R : final report / Philip B. Moy and Richard E. Sparks.
    By: Moy, Philip B. - Sparks, Richard E. - Illinois. - Illinois. - National Great Rivers Research and Education Center - NGRREC.
    Publication info: Havana, Ill. :Illinois Natural History Survey, Center for Aquatic Ecology,[1991]
    Contributed by: Lewis and Clark Community College and the National Great Rivers Research and Education Center (archive.org)
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  4. Technical report : Illinois natural areas inventory / by the Department of Landscape Architecture, Univeristy of Illinois, Urbana-Champaign, and the Natural Land Institute, Rockford, Illinois.
    By: University of Illinois at Urbana-Champaign. - Corbin, Calvin C. - White, John - Illinois Natural Areas Inventory. - Illinois. - Natural Land Institute (Rockford, Ill.) - University of Illinois at Urbana-Champaign.
    Publication info: Urbana :Dept. of Landscape Architecture, University of Illinois and Natural Land Institute,1978.
    Contributed by: University of Illinois Urbana Champaign
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