University of Illinois Urbana-Champaign

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Showing 1171–1200 of 6,125 items
Thumbnail for Annual register. 1942-43
Annual register. 1942-43
University of Illinois at Urbana-Champaign

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky fluorspar district
Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky fluorspar district
Denny, F. Brett; Maria, Anton H.; Mulvaney-Norris, Joseph L.; Guillemette, Renald N.; Cahill, Richard A.; Fifarek, Richard H.; Freiburg, Jared T.; Anderson, Warren, H.

Thumbnail for Three papers in economic geography
Three papers in economic geography
Escobedo Paredes, Luis Alfonso