TY  - BOOK
AU  - Culver,Harold Eugene
TI  - Present status of correlation of Illinois coals,
AV  - QE673 .C8
PY  - 1927///
CY  - Urbana, Ill., [Springfield
PB  - Jeffersons Printing & Stationery Co.]
KW  - Geology, Stratigraphic
KW  - Carboniferous
KW  - Coal
KW  - Illinois
N1  - At head of title: State of Illinois. Department of registration and education. Division of the State Geological Survey
ER  -