University of Illinois Urbana-Champaign

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Showing 3181–3210 of 37,114 items
Thumbnail for Loess thickness and its effect on soils in Illinois / 782
Loess thickness and its effect on soils in Illinois / 782
Fehrenbacher, Joe Bernard; Jansen, I.J.; Olson, K.R.

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.

Thumbnail for Back Matter
Back Matter
Submitter: Howard Ding