Bernhard, Hubert J, et al. <br/><br/>
New handbook of the heavens 

 -  New American Library, New York  1951 
 - 238 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy & allied sciences
<br/><br/><label>Dewey Class. No.: </label>520  BER-N