University of Illinois Urbana-Champaign

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Showing 9121–9150 of 11,276 items
Thumbnail for Water quality criteria for selected recreation uses
Water quality criteria for selected recreation uses
Bishop, Doyle W.; Aukerman, Robert

Thumbnail for Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.