TY  - BOOK
AU  - Birdie, G. S.
TI  - Water supply and sanitary engineering
U1  - 628.1 BIR 21
PY  - 1987///
CY  - Delhi
PB  - Dhanpat Rai
KW  - Sanitary engineering
KW  - Water-supply engineering
KW  - Environmental engineering
ER  -