Botkin, Daniel B. Environmental science : earth as a living planet / Daniel B. Botkin and Edward A. Keller - 5th ed. - Hoboken, NJ. : John Wiley, c2005. - xxvii, 664+ p. ; ill. ; 28 cm. ISBN: 047148816x LCCN: Subjects--Topical Terms: Environmental scienceHuman ecologyEnvironmental protection LC Class. No.: GE105 / .B68 2005 Dewey Class. No.: 363.7 / B748e