APA-viite (7. p.)
Van Vleck, J. (2013). Empire of the air: Aviation and the American ascendancy. Harvard University Press.
Chicago-viite (17. p.)
Van Vleck, Jenifer. Empire of the Air: Aviation and the American Ascendancy. Cambridge, Massachusetts: Harvard University Press, 2013.
MLA-viite (9. p.)
Van Vleck, Jenifer. Empire of the Air: Aviation and the American Ascendancy. Harvard University Press, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.