_Pioneer Astronomers / Navin Sullivan  

 - New York : Atheneum , 1964  
 - 156 p.  
<br/><br/> Includes index  
<br/><br/><label>Subjects--Topical Terms: </label><br/>_Astronomy 
<br/><br/><label>LC Class. No.: </label>QB 35 .S8 1964