TY  - BOOK
T1  - Dewatering systems for surface coal mines :final report /
DA  - 1979.
CY  - San Francisco, Calif. :
AU  - O'Rourke, J. E.
CN  - TN23
CN  - TN23
PB  - The Consultants,
PP  - San Francisco, Calif. :
PY  - 1979.
N1  - Cover title.
ID  - 38804
KW  - Strip mining.
KW  - Mine drainage.
TI  - Dewatering systems for surface coal mines :final report /
ER  -