TY  - BOOK
AU  - Davis, Mackenzie L.
TI  - Water and wastewater engineering: design principles and practice 
SN  - 9781259064838
U1  - 628.1 
PY  - 2011///
CY  - Chennai
PB  - McGraw-Hill
KW  - Water-supply
KW  - Sewage -- Purification
KW  - Water -- Purification
ER  -