Geology of western Illinois
Subtitle: Tri-State Geological Field Conference, Pere Marquette State Park, Grafton, Illinois, October 5-7, 1979
By: sponsored by Illinois State Geological Survey, Urbana, Illinois
Series: Guidebook -- 14; Guidebook (Illinois State Geological Survey) -- 14.
Publisher: The Survey
Published: 1979
Place of publication: Urbana
Language: eng
Number of pages: 90
Subjects: Geology
Other titles: Tri-State Geological Field Conference
Notes: Includes bibliographical references (p. 90).