TY  - BOOK
AU  - Kaul, S N
AU  - Szpyrkowicz, lidia
TI  - Waste water treatment technologies and environment
SN  - 9788170353423
U1  - 628.4 
PY  - 2004///
CY  - NEW DELHI
PB  - Daya Publishing House
KW  - waste water purification
N1  - V.2
ER  -