University of Illinois Urbana-Champaign

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Showing 7471–7500 of 14,841 items
Thumbnail for Geological models for groundwater flow modeling : workshop extended abstracts
Geological models for groundwater flow modeling : workshop extended abstracts
Geological Society of America. North-Central Section; Berg, Richard C.; Thorleifson, L. Harvey

Thumbnail for Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Petroleum industry in Illinois, 1971. Part I. Oil and gas developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.