University of Illinois Urbana-Champaign

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Showing 9901–9930 of 19,913 items
Thumbnail for Supplement II to Bulletin 21
Supplement II to Bulletin 21
Buswell, Arthur M.; Greenfield, Robert Edman; Gallaher, William Uren; McRoberts, Lewis Henry; Edwards, Gail Phillips

Thumbnail for Watershed Supply Assessment for Kaskaskia River Watershed Development: Phase I Technical Report
Watershed Supply Assessment for Kaskaskia River Watershed Development: Phase I Technical Report
Knapp, H. Vernon; Roadcap, George S.; Bekele, Elias G.; Wehrmann, H. Allen; Gillespi, William E.; Hecht, Jory S.; Pisani, Frank J.

Thumbnail for Classification of the Pennsylvanian rocks of Illinois as of 1956,
Classification of the Pennsylvanian rocks of Illinois as of 1956,
Wanless, Harold R. (Harold Rollin), 1899-1970.; Siever, Raymond