University of Illinois Urbana-Champaign

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Showing 4171–4200 of 4,407 items
Thumbnail for Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Petroleum industry in Illinois, 1972. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for The Learned Doctor Ames
The Learned Doctor Ames
Sprunger, Keith Laverne

Thumbnail for Vermilion River area assessment
Vermilion River area assessment
Illinois Department of Natural Resources