Smith, Henry Ladd <br/><br/>
Airways abroad  the story of American world air routes 
Henry Ladd Smith. 
 - Madison  University of Wisconsin Press  1950. 
 - 355 p. 
 - Smithsonian history of aviation series. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>91050890  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics, Commercial--History.--United States<br/>Trippe, Juan Terry.<br/>Airways
<br/><br/><label>LC Class. No.: </label>TL521  / .S52 1991 
<br/><br/><label>Dewey Class. No.: </label>387.7/2/0973