TY  - BOOK
AU  - RAO, P VENUGOPALA
TI  - Textbook of Environmental Engineering
SN  - 8120319303
PY  - 2002///
CY  - New Delhi
PB  - Prentice' Hall of India
KW  -  DOMESTIC SEWAGE
KW  -  ENVIRONMENTAL SANITATION
KW  - ECOLOGY
ER  -