University of Illinois Urbana-Champaign

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Showing 2611–2640 of 8,358 items
Thumbnail for Properties of chert related to its reactivity in an alkaline environment
Properties of chert related to its reactivity in an alkaline environment
Fraser, Gordon S.; Harvey, Richard David; Heigold, Paul C.

Thumbnail for Illinois magazine.
Illinois magazine.
Submitter: Timothy Donohue

Thumbnail for Thorn Creek area assessment
Thorn Creek area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Introduction to e-learning research
Introduction to e-learning research
Haythornthwaite, Caroline A.; Andrews, Richard