Van Vleck, J. (2013). Empire of the air: Aviation and the American ascendancy. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Van Vleck, Jenifer. Empire of the Air: Aviation and the American Ascendancy. Cambridge, Massachusetts: Harvard University Press, 2013.
Lua MLA (9ú heag.)Van Vleck, Jenifer. Empire of the Air: Aviation and the American Ascendancy. Harvard University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.