APA (7th ed.) Citation

Fay, J. S. (1981). The helicopter: History, piloting and how it flies (4. impr.). David and Charles.

Chicago Style (17th ed.) Citation

Fay, John Samuel. The Helicopter: History, Piloting and How It Flies. 4. impr. Newton Abbot [u.a.]: David and Charles, 1981.

MLA (9th ed.) Citation

Fay, John Samuel. The Helicopter: History, Piloting and How It Flies. 4. impr. David and Charles, 1981.