Speth., James Gustave. Global environmental challenges : transitions to a sustainable world / James Gustave Speth.. - New Delhi : Orient Longman Private Ltd., 2005.. - xv, 299 pages ; 22 cm. - জেলা . ISBN: 8125027408 Subjects--Topical Terms: Global environmental change. Dewey Class. No.: 363.7 / SPG 2005