TY  - BOOK
AU  - Twort,A.C.
TI  - Water supply / 
SN  - 0340692766
U1  - 628.1 
PY  - 1994///
CY  - London
PB  - Arnold, 
KW  - Water supply engineering
KW  - Water supply
N1  - Includes index: p504-511
ER  -