University of Illinois Urbana-Champaign

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Showing 2071–2100 of 2,472 items
Thumbnail for Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Geology and mineral resources of the Marseilles, Ottawa, and Streator quadrangles,
Willman, Harold Bowen; Payne, James Norman; Voskuil, Walter Henry

Thumbnail for Oil and gas development in Illinois in 1941
Oil and gas development in Illinois in 1941
Bell, Alfred Hannam; Cohee, George Vincent