Zeilik, Michael and Smith, Elske V. P. <br/><br/>
Introductory astronomy and astrophysics 

 - 2nd ed. 
 - New York  ; Saunders College Publishing  , 1987 
 - 503p. 
<br/><br/><label>ISBN: </label>0030229049   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astrophysics
<br/><br/><label>Dewey Class. No.: </label>520  / ZEI