University of Illinois Urbana-Champaign

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Showing 3001–3030 of 3,139 items
Thumbnail for Illinois wetland restoration and creation guide
Illinois wetland restoration and creation guide
Admiraal, Alicia N.; Morris, Marilyn J.; Brooks, Thomas C.; Olsen, Jeffrey W.; Miller, Michael V.

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Additional Content
Additional Content
Submitter: Howard Ding

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.