University of Illinois Urbana-Champaign

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Showing 9961–9990 of 10,541 items
Thumbnail for The Karst Landscape of Yucatan
The Karst Landscape of Yucatan
Finch, William Anderson, Jr.

Thumbnail for Headwaters area assessment
Headwaters area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

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