Davies, R. E. G. <br/><br/>
Airlines of the United States since 1914 / 
[by] R. E. G. Davies. 
 - London,  Putnam,  1972. 
 - xiii, 745 p.  illus., facsims., maps, ports.  22 cm. 
<br/><br/>Bibliography: p. 578-580. 
<br/><br/><label>ISBN: </label>0370000323 
<br/><br/><label>LCCN: </label>73162499  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Airlines--History.--United States<br/>Aeronautics, Commercial--History.--United States
<br/><br/><label>LC Class. No.: </label>TL726.2  / .D38 1972 
<br/><br/><label>Dewey Class. No.: </label>387.70973  / DAA 1972