TY  - BOOK
T1  - Directory of Illinois mineral producers, 1988-1989 /
DA  - 1990.
CY  - Champaign, IL :
AU  - Samson, Irma.
AU  - Masters, John M.
VL  - 103
CN  - TN24.I3
CN  - TN24.I3
PB  - Illinois State Geological Survey,
PP  - Champaign, IL :
PY  - 1990.
ID  - 155086
KW  - Mineral industries
KW  - Mines and mineral resources
KW  - Mining engineering
TI  - Directory of Illinois mineral producers, 1988-1989 /
ER  -