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Field Geology of the Grand Canyon
by Schuberth, Christopher J.
ISBN: 9780897920735
List Price: $2.75
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Earth: The Making of a Planet
by Roy A. Gallant, Christopher...
ISBN: 9780761450122
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View of the Past An Introduction to Illinois Geology
by Schuberth, Christopher J.
ISBN: 9780897921046
List Price: $7.00