APA (7th ed.) Citation

Boulet, J. (1979). New generation of civil helicopters. Aeronautical Journal, 83, 245.

Chicago Style (17th ed.) Citation

Boulet, J. "New Generation of Civil Helicopters." Aeronautical Journal 83 (1979): 245.

MLA (9th ed.) Citation

Boulet, J. "New Generation of Civil Helicopters." Aeronautical Journal, vol. 83, 1979, p. 245.