University of Illinois Urbana-Champaign

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Showing 31–60 of 1,967 items
Thumbnail for Reserves and resources of surface-minable coal in Illinois
Reserves and resources of surface-minable coal in Illinois
Treworgy, Colin G.; Bengal, Lawrence E.; Dingwell, Amy G.

Thumbnail for Availability of the Springfield Coal for mining in Illinois : map summary of Illinois minerals 118
Availability of the Springfield Coal for mining in Illinois : map summary of Illinois minerals 118
Treworgy, Colin G.; Korose, Christopher P.; Chenoweth, Cheri A.; North, Daniel L.

Thumbnail for A sentence verification technique for measuring reading comprehension
A sentence verification technique for measuring reading comprehension
Royer, James M.; Hastings, C. Nicholas; Hook, Colin