Leonard, Jonathan Norton.  <br/><br/>
Flight into space :    the facts, fancies and philosophy /  
Jonathan Norton Leonard.  
 - 4th ed.  
 - New York :   Random House,  c 1953. 
 - 307 p. ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/>345  345 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space flight.
<br/><br/><label>Dewey Class. No.: </label>629.14353 / L553f