Gupta, Gautam. Environmental economics in India : concepts and problems / Gautam Gupta, Joyashree Roy. - Kolkata : Allied Publishers , 1999. - xii,124p. : fig,table ; 22cm. . NULL ISBN: 8170238676 Rs.100.00 Subjects--Index Terms: ENVIRONMENTAL ECONOMICS Dewey Class. No.: 333.70954 / GUP/E