University of Illinois Urbana-Champaign

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Showing 8341–8370 of 11,612 items
Thumbnail for Hydrologic budgets for three small watersheds in Illinois
Hydrologic budgets for three small watersheds in Illinois
Schicht, Richard John; Walton, William Clarence

Thumbnail for 50 ways farmers can protect their groundwater / 1324
50 ways farmers can protect their groundwater / 1324
Simmons, F. William; Giles, Ed; Peterson, Doug

Thumbnail for Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Petroleum industry in Illinois, 1976. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.