TY  - BOOK
AU  - Alley, E. Roberts
TI  - Water quality control handbook / 
SN  - 9780071467605
U1  - 628.1 
PY  - 2007///
CY  - New York : 
PB  - Mc Graw Hill
KW  -  Water quality
KW  -  Water supply
KW  - Sanitary engineering
ER  -