Rao, P.Venugopala Textbook of enviromental engineering [[Book] /] P.Venugopala Rao. - New Delhi : Prentice - Hall of india private limited. : For sale by the U.S. G.P.O., Supt. of Docs., Congressio, 2005. - 268p. : ill ; 24cm. All age. ISBN: 8120319303 Subjects--Topical Terms: Enviromental engineering.Sanitary engineering.Enviromental health. Dewey Class. No.: 628 National Library of Medicine Call No.: 628 / R T