Challa, Satya Narayana Murty. Water resources engineering : principles and practice / Satya Narayana Murty Challa. - New Delhi : New Age Pub., c2002. - xvi, 306p. : ill., maps ; 22 cm. Includes bibliographical references and indexes. ISBN: 812241382X Subjects--Topical Terms: Hydraulic engineering--Congresses.Hydrology--Congresses. Dewey Class. No.: 627 / CHA