Slow sand filtration: recent developments in water treatment technology.

GRAHAM, N.J.D. (ed).

Horwood/Halsted, Chichester, 1988

ISBN: 074580585X

24 cm. original hardcover. 416 pp. ills, diagrams, ISBN Halsted: 0470213744. references. index. "Ellis Horwood Series in Water and Wastewater Technology". -(libr label, library stamps, otherwise very good).