Botkin, Daniel B. Environmental science : earth as a living planet / Daniel B. Botkin and Edward A. Keller - 3rd ed. - New York : John Wiley, c2000. - xxxii,649 p. : ill. ; 28 cm. ISBN: 0471321737 LCCN: Subjects--Topical Terms: Environmental scienceHuman ecologyEnvironmental protection LC Class. No.: GE105 / .B68 2000 Dewey Class. No.: 363.7 / B748e