University of Illinois Urbana-Champaign

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Showing 301–330 of 621 items
Thumbnail for Annual register. 1913-1914
Annual register. 1913-1914
University of Illinois at Urbana-Champaign

Thumbnail for Prairie Parklands area assessment
Prairie Parklands area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Isotopic studies in the natural sources of radium in groundwater in Illinois
Isotopic studies in the natural sources of radium in groundwater in Illinois
Gilekson, Robert H.; Perry, Eugene C., Jr.; Cowart, James B.; Holtzman, Richard B.

Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Locating educational information in published sources
Locating educational information in published sources
Monroe, Walter Scott; Hamilton, Thomas Tristam; Smith, Vivian Thomas