University of Illinois Urbana-Champaign

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Showing 481–510 of 2,294 items
Thumbnail for Annual report of the director. 1967-1968
Annual report of the director. 1967-1968
University of Illinois at Urbana-Champaign. Office of Admissions and Records

Thumbnail for Mackinaw River area assessment.
Mackinaw River area assessment.
Illinois Department of Natural Resources

Thumbnail for The classification of coal
The classification of coal
Parr, Samuel Wilson

Thumbnail for Illinois mineral industry in 1944
Illinois mineral industry in 1944
Voskuil, Walter Henry; Stevens, Douglas F.

Thumbnail for Illinois mineral industry in 1945
Illinois mineral industry in 1945
Voskuil, Walter Henry; Stevens, Douglas F.; Hamrick, Nina T.