TY  - BOOK
AU  - Gaur P K
TI  - Principles of Water and Waste Water Treatment 
SN  - 978-93800
U1  - 628.1GAU 
PY  - 2012///
CY  - New Delhi
PB  - SBS Pub
KW  - Sewage--Purification--
KW  - Biological treatment
KW  - Sewage disposal
KW  - Water--Purification
ER  -