Chiras, Daniel D. Environmental science : a system approach to sustainable development / Daniel d. Chiras. - 5th ed. - Balmont, California : Wadsworth Publishing, c1998. - xx, 608 p. : ill. ; 29 cm. Includes bibliographical references and index. ISBN: 0534538746 Subjects--Topical Terms: Environmental sciences.Sustainable development. LC Class. No.: GE140 / .C48 1998