TY  - BOOK
AU  - Rao, P. Venugopala.
TI  - Textbook of environmental engineering
SN  - 8120319303
U1  - 628 RAO  23
PY  - 2002/// [2003]
CY  - New Delhi
PB  - Prentice-Hall of India, 
KW  - Environmental engineering
N1  - Includes index.
ER  -