Subramanian, V. A textbook in environmental science / V.Subramanian. - / . - New Delhi : Narosa Publishing House , 2002. - vi,238p. : ill,figs,tables ; 23cm . Includes bibliogaphy and index ISBN: 8173194106 Rs. 260.00 Subjects--Index Terms: ENVIRONMENTAL SCIENCE Dewey Class. No.: 363.7 / SUB/T