Kurr, William K. <br/><br/>
Galaxies 

 - 
 - U.S.A.  Houghton Mifflin Company  1971 
 - 543 
<br/><br/><label>ISBN: </label>0395108543 
<br/><br/><label>Dewey Class. No.: </label>523.l .D93g c1971