Sumner, P. H. <br/><br/>
Aircraft, progress and development / 
by P. H. Sumner. 
 - London :  C. Lockwood,  1935 
 - xiv, 295 p. :  front., ill. ;  23 cm. 
<br/><br/> "Principal long distance flights from 1918 to present day": p. 276-292 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics<br/>Airplanes