Miller, G. Tyler. <br/><br/>
Environmental science :  working with the earth / 
G. Tyler Miller. 
 - 6th ed. 
 - Belmont :  Wadsworth,  1997. 
 - 517p. 
<br/><br/><label>ISBN: </label>053450616X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection.<br/>Environmental sciences.<br/>Human ecology.