Biddle, Wayne. <br/><br/>
Barons of the sky / 
Wayne Biddle. 
 - New York :  Simon and Schuster,  c1991. 
 - 366 p. [14 p. of plates]. 
<br/><br/><label>ISBN: </label>0671667262 
<br/><br/><label>LCCN: </label>91034004     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aerospace industries--Military aspects--History.--United States<br/>Aircraft industry--Military aspects--History.--United States<br/>Airplanes, Military--History.--United States<br/>Aeronautics, Military--History.--United States