Cita APA (7th ed.)
Van Vleck, J. (2013). Empire of the air: Aviation and the American ascendancy. Harvard University Press.
Cita Chicago (17th ed.)
Van Vleck, Jenifer. Empire of the Air: Aviation and the American Ascendancy. Cambridge, Massachusetts: Harvard University Press, 2013.
Cita MLA (9th ed.)
Van Vleck, Jenifer. Empire of the Air: Aviation and the American Ascendancy. Harvard University Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.