The Educational extension program of the Illinois State Geological Survey

Call Number: 
MS Townley, E. #1
Author: 
Townley, Enid,
Date: 
1944
Description: 
8 p.
Notes: 

Prepared for January issue of Journal of American State Geologists
Also used by Dr. M.M. Leighton for committee report to American Association of Petroleum Geologists (AAPG)

Keywords: 

Geological Survey--Education

 

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