Rock Island-Moline area
Subtitle: Rock Island County, guide leaflet for Illinois Academy of Science
By: by Gilbert O. Raasch
Contributors: Illinois State Geological Survey; Illinois Academy of Science
Series: Guide leaflet / Illinois State Geological Survey -- 1950; Guide leaflet (Illinois State Geological Survey) -- 1950.
Publisher: State of Illinois, Dept. of Registration and Education, State Geological Survey Division
Published: 1950
Place of publication: Urbana, Ill
Language: eng
Subjects: Geology
Other titles: Rock Island County
Notes: Cover title.

"May 6, 1950."