The environment / 
Mary Hill, book editor 
 - Detroit :  Thomson/Gale,  2006 
 - 136 p. :  ill. ;  24 cm. 
 - Social issues firsthand .
<br/><br/><label>ISBN: </label>0737729074 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unites States--Environmental conditions<br/>Environment policy--United States<br/>Environmental ethics--United States