Bedrock topography of Illinois
By: by Leland Horberg.
Series: Illinois State Geological Survey. Bulletin ;; no. 73; Bulletin (Illinois State Geological Survey) ;; no. 73.
Publisher: Illinois State Geological Survey
Published: 1950
Place of publication: Urbana
Language: eng
Number of pages: 111
Notes: Includes bibliographies.
"Manuscript completed March, 1946."