Keller, Edward A. <br/><br/>
Essential environmental science / 
Edward A. Keller, Daniel B. Botkin 
 - Hoboken, NJ :  John Wiley,  c2008 
 - xxvi, 454 p. :  ill. (chiefly col.), col. maps ;  28 cm. 
<br/><br/>Includes bibliographical references (p. 417-432) and index 
<br/><br/><label>ISBN: </label>9780471704119 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences