Commercial air transportation /
Frederick, John H. 1896-
Commercial air transportation / by John H. Frederick. - 5th ed. - Homewood, Ill., R.D. Irwin, 1961. - 497 p. : ill. ; 24 cm.
Includes index
Aeronautics--Commercial--United States
Airlines.
387.70973 / FRC 1961
Commercial air transportation / by John H. Frederick. - 5th ed. - Homewood, Ill., R.D. Irwin, 1961. - 497 p. : ill. ; 24 cm.
Includes index
Aeronautics--Commercial--United States
Airlines.
387.70973 / FRC 1961