University of Illinois Urbana-Champaign

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Showing 361–390 of 2,394 items
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Individual Collections
Coughlan, Margaret N.

Thumbnail for Sand and gravel resources of Mason County, Illinois
Sand and gravel resources of Mason County, Illinois
Labotka, Theodore C.; Hester, Norman C.

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Back Matter
Submitter: Howard Ding

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GeoSciences / 1994-99
Submitter: Howard Ding

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Back Matter
Submitter: Howard Ding