University of Illinois Urbana-Champaign

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Showing 6871–6900 of 17,202 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 Drought climatology of Illinois
Drought climatology of Illinois
Huff, Floyd A.; Changnon, Stanley Alcide