APA (7th ed.) Citation

Green, W., & Swanborough, G. (1980). The Observer's world airlines and airliners directory (2. ed.). Warne.

Chicago Style (17th ed.) Citation

Green, William, and Gordon Swanborough. The Observer's World Airlines and Airliners Directory. 2. ed. London: Warne, 1980.

MLA (9th ed.) Citation

Green, William, and Gordon Swanborough. The Observer's World Airlines and Airliners Directory. 2. ed. Warne, 1980.