University of Illinois Urbana-Champaign

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Showing 61–90 of 728 items
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Selected References
Allen, Walter C.

Thumbnail for Bedrock geology of Murphysboro Quadrangle, Jackson County, Illinois
Bedrock geology of Murphysboro Quadrangle, Jackson County, Illinois
Jacobson, Russell J.; Denny, F. Brett; Griffith, Gary W.