Cunningham, William P. <br/><br/>
Environmental science: a global concern 

 - 9th ed. 
 - Boston  Mc Graw- Hill  2007 
 - xvi, 620p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>0-07-110596-4 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Environmental science 
<br/><br/><label>Dewey Class. No.: </label>504