TY  - BOOK
AU  - Vyas, Jay Narayan Aand Parthsarathy , R.
TI  - Saket enviornment hand book
SN  - 0
U1  - 628 
PY  - 1994///
CY  - New Delhi
PB  - Prentice Hall Of India
KW  - Sanitary municipal engineering
ER  -