APA (7th ed.) Citation

Frederick, J. H. (1955). Commercial air transportation (4th ed.). R.D. Irwin.

Chicago Style (17th ed.) Citation

Frederick, John H. Commercial Air Transportation. 4th ed. Homewood, Ill.: R.D. Irwin, 1955.

MLA (9th ed.) Citation

Frederick, John H. Commercial Air Transportation. 4th ed. R.D. Irwin, 1955.