Unconventional aircraft /  
Peter M. Bowers  
 - Second Edition  
 - 323 pages :   illustrated ;   24 cm.  
<br/><br/><label>ISBN: </label>0-8306-2450-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Airplanes. 
<br/><br/><label>Dewey Class. No.: </label>629.133