Biodiversity Heritage Library
By "Illinois Archeological Survey. "
Comprehensive plan for the Illinois Nature Preserves System.
By: Illinois Archeological Survey. - Illinois Nature Preserves Commission. - Illinois. Dept. of Conservation. - Illinois. Framework Advisory Committee.
Publication info: Rockford, Ill. :Illinois Nature Preserves Commission,1972-1973.
Contributed by: University Library, University of Illinois Urbana Champaign