Miller,JR,Tyler.G. <br/><br/>
Envronmental science :  sustaining the earth. 

 - 4th  ed. 
 - Califonia :  Wadsworth,  1992. 
 - 470  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label>9780534178086 :  $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment science.