University of Illinois Urbana-Champaign

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Showing 6001–6030 of 14,171 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 INHS Reports, Autumn 2004
INHS Reports, Autumn 2004
Illinois Natural History Survey

Thumbnail for Annual register. 1915-16
Annual register. 1915-16
University of Illinois at Urbana-Champaign