TY  - BOOK
T1  - Glacial drift in Illinois :thickness and character /
DA  - 1975.
CY  - Urbana :
AU  - Piskin, Kemal.
AU  - Bergstrom, Robert Edward,
VL  - 416
CN  - QE105
CN  - QE105
CN  - QE697
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - 1975.
N1  - Cover title.
N1  - At head of title: State of Illinois. Department of Registration and Education.
ID  - 5836
KW  - Drift
TI  - Glacial drift in Illinois :thickness and character /
ER  -