design principles and practice Davis, Mackenzie L. 1941- creator text New Delhi Tata McGraw Hill c2013 monographic various pagings.: 25cm(pbk) ill. by Mackenzie L.Davis Includes bibliographical references and index. Water-supply Water Purification Sewage Purification 628.1 9781259064838 1259064832 ENG-107270 DBAD/PUB 20130528111145.0