University of Illinois Urbana-Champaign

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Showing 31–60 of 279 items
Thumbnail for Mineral production in Illinois in 1955
Mineral production in Illinois in 1955
Voskuil, Walter Henry; Busch, Willis L.

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