University of Illinois Urbana-Champaign

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Showing 1921–1950 of 3,604 items
Thumbnail for Water Quality Features of the Upper Illinois Waterway
Water Quality Features of the Upper Illinois Waterway
Butts, Thomas A.; Evans, Ralph L.; Lin, Shun Dar

Thumbnail for Petroleum industry in Illinois in 1956.
Petroleum industry in Illinois in 1956.
Bell, Alfred Hannam; Kline, Virginia Harriet; Pierre, Donald A.

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