University of Illinois Urbana-Champaign

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Thumbnail for The Platteville and Galena groups in northern Illinois
The Platteville and Galena groups in northern Illinois
Willman, Harold Bowen; Kolata, Dennis R.

Thumbnail for Year in review / 2009-10
Year in review / 2009-10
University of Illinois at Urbana-Champaign. Deptartment of Geology