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Commercial air transportation.

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Bibliographic Details
Main Author: Frederick, John H. (John Hutchinson), 1896-
Format: Book
Language:English
Published: Chicago : Irwin, 1951.
Edition:3d ed.
Subjects:
Aeronautics, Commercial > United States.
Description
Physical Description:xiii, 473 pages : illustrations, maps. ; 24 cm.
Bibliography:Bibliographical footnotes. Bibliography: pages 408-414.