University of Illinois Urbana-Champaign

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Showing 4741–4770 of 5,302 items
Thumbnail for Engineering and legal aspects of land drainage in Illinois.
Engineering and legal aspects of land drainage in Illinois.
Pickels, George Wellington; Leonard, Frank Bonner

Thumbnail for Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1970. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.