TY  - BOOK
AU  - Manjunath, D. L. 
TI  - Environmental studies
SN  - 81-317-0912-4
U1  - 628 
PY  - 2007///
CY  - New Delhi
PB  - Pearson
KW  - Sanitary engineering
N1  - Includes index; M. R. Books
ER  -