Proceedings of the Illinois Basin Energy and Mineral Resources Workshop, September 12-13, 1994, Evansville, Indiana /
sponsored by the Illinois Basin Consortium and the United States Geological Survey ; edited by Jennie L. Ridgley ... [et al.].
|Related Names:||Ridgley, Jennie L.|
[Denver, CO] : U.S. Geological Survey, 
Mines and mineral resources
Mines and mineral resources /
Mines and mineral resources / Illinois Basin /
Illinois Basin > Illinois Basin / Research > Illinois Basin / Research / Congresses.
48 p. :
ill., maps ;
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|Full viewIllinois State Geological Survey / Open File Series No. 1994-4||University of Illinois at Urbana-Champaign|