TY  - BOOK
T1  - Water pollution technology /
DA  - c1977.
CY  - Reston, Va. :
AU  - Black, John A.,
CN  - TD420
CN  - TD420
PB  - Reston Pub. Co.,
PP  - Reston, Va. :
PY  - c1977.
ID  - 18301
KW  - Water
KW  - Water
KW  - Sewage
SN  - 0879098759
TI  - Water pollution technology /
ER  -