TY - BOOK AU - Clegg, Kenneth Edward. CN - QE105 CN - QE105 CN - QE105 .A45 no.380 CY - Urbana : DA - 1965. ID - 10412 KW - Geology, Stratigraphic KW - Geology KW - Coal N1 - At head of title: State of Illinois. Department of Registration and Education. N1 - Part of illustrative matter in pocket. PB - Illinois State Geological Survey, PP - Urbana : PY - 1965. T1 - Subsurface geology and coal resources of the Pennsylvanian system in Clark, and Edgar Counties, Illinois / TI - Subsurface geology and coal resources of the Pennsylvanian system in Clark, and Edgar Counties, Illinois / VL - 380 ER -