University of Illinois Urbana-Champaign

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Showing 3421–3450 of 5,952 items
Thumbnail for Public groundwater supplies in Pike county
Public groundwater supplies in Pike county
Woller, Dorothy M.; Kunz, Karen L.; Sanderson, Ellis W.

Thumbnail for Washability tests of Illinois coals
Washability tests of Illinois coals
Callen, Alfred Copeland; Mitchell, David Ray

Thumbnail for Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Petroleum industry in Illinois, 1975. Part I. Oil and Gas Developments
Illinois State Geological Survey; Van Den Berg, Jacob; Lawry, Thomas F.