Guide leaflet, Geological science field trip, Salem area, Marion Counties [sic] : Centralia and Salem quadrangles / leaders: George M. Wilson and I. Edgar Odom.
|Related Names:||Odom, Edgar. , Wilson, George M.|
Urbana, Ill. : State of Illinois, Dept. of Registration and Education, State Geological Survey Division, 
> Marion County.
"April 16, 1960."
"Host: Salem Senior High School."
11,  leaves :
ill., maps ;
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