TY  - BOOK
AU  - Bell, A. H.
AU  - Piersol, Robert James,
CN  - QE105
CN  - QE105
CY  - Urbana :
DA  - c1931.
ID  - 9464
KW  - Petroleum
KW  - Natural gas
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - c1931.
T1  - The need for sand coring in the Southeastern Illinois oil field /
TI  - The need for sand coring in the Southeastern Illinois oil field /
VL  - no. 21.
ER  -