TY  - BOOK
AU  - Williams,George Bransby
TI  - The purification of water supplies,
U1  - 628.1 
PY  - 1946///
CY  - London
PB  - Chapman & Hall ltd.
KW  - Water
KW  - Purification
KW  - MCE
N1  - "First published 1944."
ER  -