Wright, Richard T., 1933- Environmental science : toward a sustainable future / Richard T. Wright, Dorothy O. Boorse. - 11th ed. - Boston : Benjamin Cummings ; PHI Learning Pvt. Ltd., c2011 [reprinted 2010]. - xxii, 674 p. : ill. (chiefly col.), maps (chiefly col.) ; 28 cm. Includes index. ISBN: 9788120341296 LCCN: 2009041839 Subjects--Topical Terms: Environmental sciences Dewey Class. No.: 363.7 W9356e 2011