University of Illinois Urbana-Champaign

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Showing 9001–9030 of 11,158 items
Thumbnail for Big Muddy River area assessment
Big Muddy River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Summary of water flood operations in Illinois oil pools during 1954
Summary of water flood operations in Illinois oil pools during 1954
Witherspoon Jr., Paul Adams; Jackson, Edwin G.