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Slow sand filtration /

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Bibliographic Details
Main Authors: Huisman, L., Wood, W. E. (Author)
Format: Book
Language:English
Published: Geneva : [Albany] : World Health Organization ; [sold by Q Corp.], 1974.
Subjects:
Water > Purification > Slow sand filtration.
Description
Item Description:Includes index.
Physical Description:122 pages : illustrations ; 24 cm.
Bibliography:Bibliography: page 116.