Hammer, Mark J., 1931- Water and wastewater technology / Mark J. Hammer, Mark J. Hammer, Jr. - 7th ed. - Upper Saddle River, N.J. : Pearson/Prentice Hall, c2012. - xi, 460 p. : ill. ; 29 cm. Includes bibliographical references and index. ISBN: 9780132719889 Subjects--Topical Terms: Water-supply engineering.Sewage disposal. LC Class. No.: TD345 / .H25 2012