Hickman, G. C. The ecology action guide / Action for sustainable future; Graham C. Hickman & Susan M. Hickman. - San Francisco : Benjamin Cummings, 2002. - vii, 68 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0321068831 Subjects--Topical Terms: Ecology.Ecology--Political aspects.Environmentalism. LC Class. No.: DUCE QH541.H515