University of Illinois Urbana-Champaign

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Showing 7771–7800 of 32,897 items
Thumbnail for Groundwater geology of the East St. Louis area, Illinois,
Groundwater geology of the East St. Louis area, Illinois,
Bergstrom, Robert Edward; Walker, Theodore R.

Thumbnail for INHS Reports, January/February 1998
INHS Reports, January/February 1998
Illinois Natural History Survey

Thumbnail for Current developments in coal
Current developments in coal
Mineral Industries Conference of Illinois (5th : 1938 : Urbana)

Thumbnail for Effect of agriculture on Cedar Lake water quality
Effect of agriculture on Cedar Lake water quality
Roseboom, Donald P.; Evans, Ralph L.; Hill, Thomas E.