TY  - BOOK
AU  - Hammer, Mark. J.
AU  - Hammer, Mark J. (Jr.)
TI  - Water and wastewater technology
SN  - 9788120313781
U1  - 628.1 
PY  - 1998///
CY  - New Delhi
PB  - Pearson Education
KW  - Civil Engineering
ER  -