University of Illinois Urbana-Champaign

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Showing 2221–2250 of 2,472 items
Thumbnail for Illinois Technograph v. 033 (1920-1921)
Illinois Technograph v. 033 (1920-1921)
Submitter: Timothy Donohue

Thumbnail for Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1974. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.

Thumbnail for Illinois Technograph v. 045 (1930-1931)
Illinois Technograph v. 045 (1930-1931)
Submitter: Timothy Donohue

Thumbnail for Lower Rock River area assessment
Lower Rock River area assessment
Submitter: Steven Mccauley