University of Illinois Urbana-Champaign

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Showing 631–660 of 2,093 items
Thumbnail for Lake Dredging in Illinois and a Preliminary Assessment of Pre-dredging Conditions at Lake Springfield
Lake Dredging in Illinois and a Preliminary Assessment of Pre-dredging Conditions at Lake Springfield
Bhowmik, Nani G.; Fitzpatrick, William P.; Helfrich, John A.; Krug, Edward C.

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.