TY  - BOOK
T1  - Trace elements in coal :occurrence and distribution /
DA  - 1977.
CY  - Urbana :
AU  - Gluskoter, Harold J.
VL  - no. 499
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - 1977.
ID  - 9494
KW  - Coal
KW  - Trace elements
TI  - Trace elements in coal :occurrence and distribution /
ER  -