Hartmann W.K. <br/><br/>
Astronomy 

 - Belmont:  Pub.Wadsworth   0 
 - 694 p. 
 - 1991 edition .
<br/><br/><label>ISBN: </label>534149464 
<br/><br/><label>Subjects--Index Terms: </label>Astronomy  : The Cosmic Journey. 
<br/><br/><label>Dewey Class. No.: </label>520-DC20  / H333