Rao, C.S.. Environmental pollution control engineering / by C.S. Rao. - New Delhi : Wiley Eastern , 1991. - viii,431p. : ills.,figs.,tables ; 25cm. . Includes index ISBN: 8122403018 Rs.165.00 Subjects--Index Terms: ENVIRONMENTAL POLLUTION Dewey Class. No.: 363.7 / RAO/E