University of Illinois Urbana-Champaign

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Showing 5821–5850 of 11,330 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 1940
Oil and gas development in Illinois in 1940
Bell, Alfred Hannam; Cohee, George Vincent