Keller, Edward A.,  1942- <br/><br/>
Introduction to environmental geology / 
Edward A. Keller. 
 - 7th ed. 
 - Upper Saddle River, N.J. :  Pearson Prentice Hall,  2008. 
 - v.   ill. (some col.), col. maps ;  29 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0132251507 9780132251507 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental geology--Textbooks.