TY  - BOOK
AU  - Helfinstine, Roy John.
CN  - QE105
CN  - QE105
CN  - TN816
CY  - Urbana,
DA  - 1971-74.
ID  - 2424
KW  - Coal washing.
KW  - Coal
N1  - Cover title.
PP  - Urbana,
PY  - 1971-74.
T1  - Sulfur reduction of Illinois coals--washability studies
TI  - Sulfur reduction of Illinois coals--washability studies
ER  -