KUMARAN.T.V Environmental pollution /T. Vasantha Kumaran, S. Antony Norbert - 1 st ed. - Colombo Kumaran Book House 2007 - 69 pages.- - Monograph series in geography V.2 . Manograph Series in Geography: 2 ISBN: 978955659079X Subjects--Topical Terms: PollutionEnvironmental pollution Dewey Class. No.: 363.7 / VAS