Cunningham, William P. <br/><br/>
Environmental science 
William P. Cunningham, Mary Ann Cunningham and Barbara Woodworth Saigo 
 - 9th ed. 
 - New York:  McGraw-Hill Companies, Inc.,  2007. 
 - xvi, 620p.  ill. some col. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>9780072830897 0072830891 
<br/><br/><label>Dewey Class. No.: </label>363.7