Culp, Gordon L. New concepts in water purification / [by] Gordon L. Culp and Russell L. Culp. - New York: Van Nostrand Reinhold Co., [1974]. - ix, 305 p. : illus ; 24 cm. - Van Nostrand Reinhold environmental engineering series . Includes bibliographical references. ISBN: 0442217811 Subjects--Topical Terms: Water--Purification Dewey Class. No.: 628.16