TY  - GEN
AU  - Bolton,Ronald Lomax
AU  - Klein,Louis
TI  - Sewage treatment: basic principles and trends 
SN  - 0408347805
U1  - 628.3 
PY  - 1971///
CY  - London
PB  - Butterworths
KW  - Sewage disposal
N1  - Previous ed. 1961
ER  -