University of Illinois Urbana-Champaign

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Showing 3811–3840 of 6,707 items
Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

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.