Frederick, John H.
Commercial air transportation / John H. Frederick. - Revised ed. - Chicago : Richard D. Irwin, c 1947. - xviii, 791 p. : ill. ; 23 cm.
Includes index.
318 318
Air transportation.
387.7 / F872c
Commercial air transportation / John H. Frederick. - Revised ed. - Chicago : Richard D. Irwin, c 1947. - xviii, 791 p. : ill. ; 23 cm.
Includes index.
318 318
Air transportation.
387.7 / F872c