TY  - BOOK
AU  - Modak, N. V.
TI  - Sewage and waste water treatment
U1  - 628.3 
PY  - 1971///
CY  - Bombay
PB  - ; Somaiya Publications
KW  - Sewage
KW  - Waste Water Management
KW  - Wastewater Engineering
ER  -