APA (7th ed.) Citation

Swanborough & GREEN. (1975). The Observer's world airlines and airlines directory. Frederic Warne.

Chicago Style (17th ed.) Citation

Swanborough and GREEN. The Observer's World Airlines and Airlines Directory. London: Frederic Warne, 1975.

MLA (8th ed.) Citation

Swanborough and GREEN. The Observer's World Airlines and Airlines Directory. Frederic Warne, 1975.

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