APA (7th ed.) Citation

Civil Aviation Authority. (1990). Extended range twin operations (ETOPS) (2nd ed.). Civil Aviation Authority.

Chicago Style (17th ed.) Citation

Civil Aviation Authority. Extended Range Twin Operations (ETOPS). 2nd ed. Cheltenham: Civil Aviation Authority, 1990.

MLA (9th ed.) Citation

Civil Aviation Authority. Extended Range Twin Operations (ETOPS). 2nd ed. Civil Aviation Authority, 1990.

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