TY  - BOOK
AU  - Birdie,G.S
AU  - Birdie JS
TI  - Water supply & sanitory engineering:including environmental engineering &pollution control act's
SN  - 9788187433798
U1  - 628.1BIR-W 
PY  - 2014///
CY  - New Delhi
PB  - Dhanpt raji publishing company(p)ltd
ER  -