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  1. By: Shaw, Thomas H. (Thomas Howard) - Sargent, Michael L. (Michael Leroy) - Illinois State Geological Survey.
    Publication info: Champaign, Ill, Illinois State Geological Survey, 1989
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Peppers, Russel Allen, - Harvey, Richard D. (Richard David), - Illinois State Geological Survey.
    Publication info: Champaign, Ill, Dept. of Natural Resources, Illinois State Geological Survey, 1997
    Holding Institution: University Library, University of Illinois Urbana Champaign
  3. By: Collinson, Charles William - Skartvedt, Romayne. - Illinois State Geological Survey.
    Publication info: Urbana, Ill, Illinois State Geological Survey, 1966
    Holding Institution: University Library, University of Illinois Urbana Champaign
  4. By: Jennings, James R. - Illinois State Geological Survey.
    Publication info: Champaign, IL (615 E. Peabody Dr., Champaign 61820), Illinois State Geological Survey, 1990
    Holding Institution: University Library, University of Illinois Urbana Champaign
  5. By: Leonard, A. Byron (Arthur Byron), - Frye, John Chapman, - Johnson, W. Hilton (William Hilton), - Illinois State Geological Survey.
    Publication info: Urbana, Ill, Illinois State Geological Survey, 1971
    Holding Institution: University Library, University of Illinois Urbana Champaign
  6. By: Illinois. Dept. of Natural Resources. Office of Scientific Research and Analysis. - Critical Trends Assessment Project. - Illinois State Geological Survey. - Illinois. Dept. of Natural Resources.
    Publication info: Springfield, Ill, Illinois Dept. of Natural Resources, 1998-
    Holding Institution: University Library, University of Illinois Urbana Champaign
  7. By: Holm, Nancy Peterson. - Morgan, Beth McArdle. - Illinois State Geological Survey.
    Publication info: Champaign, IL, Illinois State Geological Survey, [1988?]
    Holding Institution: University Library, University of Illinois Urbana Champaign
  8. By: Illinois State Geological Survey. - Frye, John Chapman,
    Publication info: Urbana, 1974
    Holding Institution: University Library, University of Illinois Urbana Champaign
  9. By: Kosanke, Robert M. (Robert Max) - Illinois State Geological Survey.
    Publication info: Urbana, Ill, State Geological Survey, 1950
    Holding Institution: University Library, University of Illinois Urbana Champaign
  10. By: Pfefferkorn, Hermann W. - Illinois. Dept. of Registration and Education. - Illinois State Geological Survey.
    Publication info: Urbana, Illinois State Geological Survey, 1976
    Holding Institution: University Library, University of Illinois Urbana Champaign
  11. By: Illinois. Dept. of Natural Resources. - Illinois. Natural History Survey Division - Illinois State Geological Survey.
    Publication info: Springfield, IL, Illinois Dept. of Natural Resources, 1996-
    Holding Institution: University Library, University of Illinois Urbana Champaign
  12. By: Peppers, Russel A. (Russel Allen), - Illinois State Geological Survey.
    Publication info: Urbana, Ill, Illinois State Geological Survey, 1964
    Holding Institution: University Library, University of Illinois Urbana Champaign
  13. By: Levin, Geoffrey Arthur. - Illinois. Natural History Survey Division - Illinois State Geological Survey. - University of Illinois at Urbana-Champaign. Department of Landscape Architecture. - University of Illinois at Urbana-Champaign. Department of Plant Biology.
    Publication info: Champaign, IL, Illinois Natural History Survey, ©2002
    Holding Institution: University Library, University of Illinois Urbana Champaign
  14. By: Winslow, Marcia R. - Illinois State Geological Survey.
    Publication info: Urbana, Ill, Illinois State Geological Survey, 1959
    Holding Institution: University Library, University of Illinois Urbana Champaign