Hubble, Edwin,  1889-1953 <br/><br/>
The realm of the nebulae / 
by Edwin Hubble 
 - New York :  Dover Publications,  1958 
 - 207 p. :  ill. ;  21 cm. 
<br/><br/> "An unabridged republication of the first edition." 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> USD 1.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nebulae
<br/><br/><label>Dewey Class. No.: </label>523.85