University of Illinois Urbana-Champaign

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Showing 6661–6690 of 7,019 items
Thumbnail for Assessment of Eighteen Public Ground-water Supplies in Illinois
Assessment of Eighteen Public Ground-water Supplies in Illinois
Wehrmann, H. Allen; Visocky, Adrian P.; Burris, Charles B.; Ringler, Robert W.; Brower, Ross D.

Thumbnail for Rock River Area Assessment
Rock River Area Assessment
Illinois Department of Natural Resources