Ley, Willy,  1906-1969. <br/><br/>
Rockets and space travel;  the future of flight beyond the stratosphere /  
[by] Willy Ley. 
 - New York,  The Viking Press,  1947. 
 - viii, 374 p.  illus., plates, ports., diagrs.  22 cm. 
<br/><br/> "Revised and enlarged edition of Rockets." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COHETES<br/>AERONAUTICA
<br/><br/><label>Universal Decimal Class. No.: </label>629.783