Penrose, Harald.  <br/><br/>
British aviation :   the Great War and Armistice, 1915-1919 / 
Harald Penrose. 
 - London :  Putnam,  c 1969. 
 - 620 p. :  ill. ;  22 cm. 
<br/><br/> Includes index.  
<br/><br/>345  345 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics--Great Britain.--History
<br/><br/><label>Dewey Class. No.: </label>629.134 / P368b