N. Sawyer, Clair Chemestry for environmental engineering / Clair N. Sawyer...[et al.] - 3 - United States of America : McGraw-Hill - ix, 532 p. / 24 cm. ISBN: 0-07-054971-0 Subjects--Topical Terms: 1.WATER AND WASTEWATER ANALYSIS Dewey Class. No.: 628.161 S735c