Economical Geology Of Illinois

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Economical Geology Of Illinois; Economical Geology Of Illinois; Illinois State Geological Survey; Volume 1 Of Economical Geology Of Illinois: Reprinted From The Original Reports Of The Geological Survey, With Additions And Emendations; Amos Henry Worthen
reprint
Amos Henry Worthen, Illinois State Geological Survey
Rokker, 1882
Geological surveys; Geology; Geology, Economic