Slow sand filtration /

Bibliographic Details
Main Author:	Huisman, L.
Other Authors:	Wood, W. E.
Format:	Microform Book
Language:	English
Published:	Geneva : World Health Organization, 1974.
Series:	AT microfiche reference library ; 16-376.
Subjects:	Water > Purification > Filtration.

Evans: Microforms (3rd floor)