Michael A. Seeds <br/><br/>
Horizons: Exploring the universe 

 - 9th ed. 
 -  Wadsworth Inc.  2002 
 - 543 p 
<br/><br/><label>ISBN: </label>0- 495- 01004- 9 
<br/><br/><label>LC Class. No.: </label>QB 45 .S44/