Benefield, Larry D. Process chemistry for water and wastewater treatment Larry D. Benefield and Joseph F. Judkins, Jr., and Barron L. Weand - Englewood Cliffs, N.J Prentice-Hall c1982 - xii, 510 p. ill. 25 cm. Subjects--Topical Terms: Sewage--PurificationSanitary chemistryWater--Purification Dewey Class. No.: 628.1 / 66