TY  - BOOK
AU  - Treworgy, Colin G.
CN  - TN24.I3
CN  - TN24.I3
CY  - Champaign, IL :
DA  - [1999]
ID  - 222236
KW  - Coal mines and mining
KW  - Coal reserves
PB  - Illinois State Geological Survey,
PP  - Champaign, IL :
PY  - [1999]
T1  - Availability of the Springfield Coal for mining in Illinois /
TI  - Availability of the Springfield Coal for mining in Illinois /
ER  -