TY  - BOOK
T1  - The Sangamon arch /
DA  - 1965.
CY  - Urbana :
AU  - Whiting, L. L.
AU  - Stevenson, D. L.
VL  - no. 383
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - 1965.
N1  - Cover title.
ID  - 10959
KW  - Geology, Stratigraphic
KW  - Geology
TI  - The Sangamon arch /
ER  -