Hartmann, William K. <br/><br/>
Astronomy:   the cosmic journey /  
William K. Hartmann 
 - 4th ed. 
 - Belmont, Calif.:   Wadsworth Publishing,   1989 
 - xx, 694 p.;    26 cm. 
<br/><br/>Index. 
<br/><br/><label>ISBN: </label>0534095763 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--------
<br/><br/><label>Dewey Class. No.: </label>520 HAR