Brown, Lester R. Vitals signs 2000 : the environmental trends that are shaping our future / Lester R. Brown, Michael Renner, Brain Halweil. - New York : W. W. Norton & Company, 2000. - 192 p. : ill. ; 24 cm. Includes bibliographical references. ISBN: 0393320227 Subjects--Topical Terms: Environmental impact analysis --Studies------ Dewey Class. No.: 333.714