Sharon Stewart. <br/><br/>
Save Our Earth / 
Sharon Stewart. 
 - Essex :  Pearson Education Ltd,  2004. 
 - 32 ;  24 cm. 
<br/><br/><label>ISBN: </label>9780582845565 
<br/><br/><label>Dewey Class. No.: </label>333.72  STE/O