Singapore Airlines. (1979). The Pursuit of excellence: An island and its airline. Singapore Airlines.
Chicagoスタイル(17版)引用形式Singapore Airlines. The Pursuit of Excellence: An Island and Its Airline. [Singapore]: Singapore Airlines, 1979.
MLA(8版)引用形式Singapore Airlines. The Pursuit of Excellence: An Island and Its Airline. Singapore Airlines, 1979.
警告: この引用は必ずしも正確ではありません.