TY  - BOOK
AU  - Kaufman, Walter W.
CN  - TN23 .U44 1980-6
CN  - TN23
CY  - Harrisburg, Pa. :
DA  - 1978.
ID  - 32621
KW  - Coal mines and mining
KW  - Coal mine waste.
PB  - Skelly and Loy,
PP  - Harrisburg, Pa. :
PY  - 1978.
T1  - Study of underground coal mine waste disposal requirements in the United States :final report /
TI  - Study of underground coal mine waste disposal requirements in the United States :final report /
ER  -