APA-viite (7. p.)
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.
Chicago-viite (17. p.)
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.
MLA-viite (9. p.)
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.
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