Singapore Airlines. (1979). The Pursuit of excellence: An island and its airline. Singapore Airlines.
Chicago-Zitierstil (17. Ausg.)Singapore Airlines. The Pursuit of Excellence: An Island and Its Airline. [Singapore]: Singapore Airlines, 1979.
MLA-Zitierstil (8. Ausg.)Singapore Airlines. The Pursuit of Excellence: An Island and Its Airline. Singapore Airlines, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.