Walker, Rodger. Water supply, treatment, and distribution / Rodger Walker. - Englewood Cliffs, N.J. : Prentice-Hall, c1978. - xix, 420 p. : : ill. (1 fold. diagram in pocket) ; ; 25 cm. Includes bibliographical references and index. ISBN: 0139460047 Subjects--Topical Terms: Water-supply engineering.