Ley, Willy,  1906- <br/><br/>
Space travel / 
by Wily Ley ; illustrated by John Polgreen 
 - New York :  Guild Press,  1958 
 - 44 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rockets (Aeronautics)--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>629.13