University of Illinois Urbana-Champaign

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Showing 2401–2430 of 5,003 items
Thumbnail for Watershed Monitoring and Land Use Evaluation for the Vermilion River Watershed
Watershed Monitoring and Land Use Evaluation for the Vermilion River Watershed
Keefer, Laura; Demissie, Misganaw; Mayer, Dan; Nichols, Ken; Shaw, Susan

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.