University of Illinois Urbana-Champaign

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Showing 3721–3750 of 4,292 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 Year-book for 1907.
Year-book for 1907.
Illinois State Geological Survey

Thumbnail for A Statistical Guide for the Ethically Perplexed
A Statistical Guide for the Ethically Perplexed
Hubert, Lawrence J.; Wainer, Howard