APA (7th ed.) Citation

Heppenheimer. Turbulent skies: The history of commercial aviation. John Wiley & Sons 1995.

Chicago Style (17th ed.) Citation

Heppenheimer. Turbulent Skies: The History of Commercial Aviation. New York: John Wiley & Sons 1995.

MLA (9th ed.) Citation

Heppenheimer. Turbulent Skies: The History of Commercial Aviation. John Wiley & Sons 1995.

Warning: These citations may not always be 100% accurate.