University of Illinois Urbana-Champaign

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Showing 2671–2700 of 4,365 items
Thumbnail for Guide to the geology of the Hennepin area, Putnam, Bureau, and Marshall counties, Illinois
Guide to the geology of the Hennepin area, Putnam, Bureau, and Marshall counties, Illinois
Frankie, Wayne T.; Jacobson, Russell J.; Hansel, Ardith K.; Killey, Myrna M.; Nelson, Robert S.; Malone, Dave H.; Shields, William E.; Corbett, Robert G.

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