TY  - BOOK
CN  - TN321
CN  - TN321
CY  - [Cincinnati, Ohio,
DA  - 1964]
ID  - 1954
KW  - Mine drainage.
N1  - Cover title.
PP  - [Cincinnati, Ohio,
PY  - 1964]
T1  - Principles and guide to practices in the control of acid mine-drainage;supplemented by case histories.
TI  - Principles and guide to practices in the control of acid mine-drainage;supplemented by case histories.
ER  -