A Guide to the geology of the Zion-Lake Bluff area
By: David L. Reinertsen, Ardith K. Hansel, Rodney D. Norby
Contributors: Hansel, Ardith Kay, 1948-; Norby, Rodney D.; Illinois State Geological Survey
Series: Field trip guide leaflet -- 1981 C; Field trip guide leaflet (Illinois State Geological Survey) -- 1981C.
Publisher: Illinois Institute of Natural Resources, State Geological Survey Division
Published: 1981
Place of publication: Champaign, IL
Language: eng
Number of pages: 32
Subjects: Geology
Notes: Cover title.

"October 3, 1981."

Bibliography: p. 31-32.