APA (7th ed.) Citation

Key, D. L. (1982). Handling qualities specifications for U. S. military helicopters. Journal of Aircraft, 19, 138.

Chicago Style (17th ed.) Citation

Key, D. L. "Handling Qualities Specifications for U. S. Military Helicopters." Journal of Aircraft 19 (1982): 138.

MLA (9th ed.) Citation

Key, D. L. "Handling Qualities Specifications for U. S. Military Helicopters." Journal of Aircraft, vol. 19, 1982, p. 138.