Books by Illinois State Geological Survey (sorted by popularity)
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- Alias University of Illinois (Urbana-Champaign campus). State Geological Survey
- Alias ISGS
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Displaying results 1–3
- Guide to Rocks and Minerals of Illinois Illinois State Geological Survey 225 downloads
- Guide to the Geologic Map of Illinois Illinois State Geological Survey 195 downloads
- Inside Illinois: Mineral Resources Illinois State Geological Survey 53 downloads
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Displaying results 1–3