TY  - BOOK
T1  - Notes on the earthquake of November 9, 1968, in southern Illinois /
DA  - 1968.
CY  - Urbana :
AU  - Heigold, Paul C.
VL  - no. 24
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - 1968.
ID  - 8699
KW  - Earthquakes
TI  - Notes on the earthquake of November 9, 1968, in southern Illinois /
ER  -