TY  - BOOK
T1  - Abundance of trace and minor elements in organic and mineral fractions of coal /
DA  - 1980.
CY  - Urbana, Ill. :
VL  - no. 88
CN  - QE105
CN  - QE105
PB  - Illinois Institute of Natural Resources, State Geological Survey Division,
PP  - Urbana, Ill. :
PY  - 1980.
ID  - 25552
KW  - Coal.
KW  - Coal
TI  - Abundance of trace and minor elements in organic and mineral fractions of coal /
ER  -