TY  - BOOK
AU  - Kamala, A; Kanth Rao, D L
TI  - Environmental engineering: Water supply sanitary engineering and pollution
U1  - 628  KAM-E 
PY  - 2002///
CY  - McGraw-Hill book Co, Inc., NewYork
KW  - Sanitary and municipal engineering, Environmental protection engineering
ER  -