Strafford, Alan H. <br/><br/>
Air transport economics in the supersonic era 
by Alan H. Strafford 
 - 2nd ed. 
 - London   Macmillan  1967 
 - 506+xivp.:fig.,tab.,index,.;  23cm. 
<br/><br/><label>Dewey Class. No.: </label>387.7  / STR