TY  - BOOK
AU  - Gray,N.F.
TI  - Drinking water quality: problems and solutions 
SN  - 0471948187
AV  - TD257 .G72 1994
U1  - 628.10941 
PY  - 1994///
CY  - New York
PB  - John Wiley
KW  - Drinking water
KW  - Great Britain
KW  - Great Britain. Water quality
KW  - Great Britain. Water
KW  - Pollution
ER  -