TY  - BOOK
AU  - Dr Krishna Gopal
TI  - Water and waste water
SN  - 978813130
U1  - 628.3 
PY  - 2007///
CY  - New Dehli
PB  - A.P.H Publishing corporation
KW  - MCE
N1  - 0; 0; 0; 628_300000000000000_GOP
ER  -