University of Illinois Urbana-Champaign

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Showing 2911–2940 of 10,714 items
Thumbnail for Pekin geological science field trip
Pekin geological science field trip
Reinertsen, David L.; Nelson, Robert S.; Killey, Myrna M.

Thumbnail for Possible recovery of coal from waste at Illinois mines
Possible recovery of coal from waste at Illinois mines
Smith, Cloyde Moffett; Mitchell, David Ray