Frederick, Lawrence W. <br/><br/>
Astronomy   
by Lawrence W. Frederick, Robert H. Baker. 
 - 10th 
 - New york  D. Van Nostrand Company  1976 
 - xiii, 559p. 
<br/><br/><label>ISBN: </label>0442224443 
<br/><br/><label>LCCN: </label>75-31297 
<br/><br/><label>Dewey Class. No.: </label>520  / N76