TY  - BOOK
T1  - Mineral production in Illinois in 1955.
DA  - 1956]
CY  - [Urbana,
AU  - Voskuil, Walter H.
CN  - QE105
CN  - QE105
PP  - [Urbana,
PY  - 1956]
ID  - 17420
KW  - Mines and mineral resources
TI  - Mineral production in Illinois in 1955.
ER  -