University of Illinois Urbana-Champaign

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Showing 61–90 of 1,886 items
Thumbnail for Deep-minable coal resources of Illinois
Deep-minable coal resources of Illinois
Treworgy, Colin G.; Bargh, Margaret H.

Thumbnail for Back Matter
Back Matter
Submitter: Howard Ding

Thumbnail for It says here / 1963-64
It says here / 1963-64
Submitter: Howard Ding

Thumbnail for Availability of the Herrin Coal for mining in Illinois : map summary of Illinois minerals 120
Availability of the Herrin Coal for mining in Illinois : map summary of Illinois minerals 120
Treworgy, Colin G.; Korose, Christopher P.; Wiscombe, Christine L.