Arms,Karen. <br/><br/>
Holt Environmental science. 

 - Newyork:  Harcourt Brace & company;  1996. 
 - xvii,432p.:  ill.  27cm. 
<br/><br/><label>ISBN: </label>9780030031335 
<br/><br/><label>Dewey Class. No.: </label>333.7 ARM