APA (7th ed.) Citation

Zweng, C. A., & Zweng, A. C. (1956). Airline transport pilot rating (8th rev. ed.). Pan American Navigation Service.

Chicago Style (17th ed.) Citation

Zweng, Charles A., and Allan C. Zweng. Airline Transport Pilot Rating. 8th rev. ed. North Hollywood, Calif.: Pan American Navigation Service, 1956.

MLA (9th ed.) Citation

Zweng, Charles A., and Allan C. Zweng. Airline Transport Pilot Rating. 8th rev. ed. Pan American Navigation Service, 1956.