TY  - BOOK
AU  - Huisman, L.
AU  - Wood, W. E.
ED  - World Health Organization
TI  - Slow sand filtration
SN  - 9241540370
PY  - 1974///
CY  - Geneva
PB  - World Health Organization
KW  - Filtration
KW  - Methods
KW  - Sanitary engineering
KW  - Water supply
N1  - Acc. No. 110063
ER  -