TY  - BOOK
T1  - Classification of the Pennsylvanian strata of Illinois /
DA  - 1960.
CY  - Urbana :
AU  - Kosanke, Robert M.
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - 1960.
ID  - 10898
KW  - Geology
KW  - Petrology
KW  - Geology, Stratigraphic
TI  - Classification of the Pennsylvanian strata of Illinois /
ER  -