Cita APA (7th ed.)
Van der Linden, F. R. (2002). Airlines and air mail: The post office and the birth of the commercial aviation industry. University Press of Kentucky.
Cita Chicago (17th ed.)
Van der Linden, F. Robert. Airlines and Air Mail: The Post Office and the Birth of the Commercial Aviation Industry. Lexington, Kentucky: University Press of Kentucky, 2002.
Cita MLA (9th ed.)
Van der Linden, F. Robert. Airlines and Air Mail: The Post Office and the Birth of the Commercial Aviation Industry. University Press of Kentucky, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.