TY  - BOOK
AU  - Hammer, Mark, J and Hammer, Mark, J 
TI  - Water and wastewater technology 
SN  - 9789332550056
U1  - 628.1 HAM  
PY  - 2017///
CY  - Pearson education of asia 
PB  - New Delhi 
KW  - WATER SUPPLY ENGINEERING
ER  -