TY  - BOOK
ED  - Great Britain
TI  - Guidance of safeguarding the quality of public water supplies
SN  - 0117522627
AV  - UNJ 
U1  - 628.161 
PY  - 1989///
CY  - London
PB  - Her Majesty's Stationery Office
KW  - Water Supply
ER  -