Vogan, T. (2014). Keepers of the flame: NFL Films and the rise of sports media. University of Illinois Press.
Chicago-referens (17:e uppl.)Vogan, Travis. Keepers of the Flame: NFL Films and the Rise of Sports Media. Urbana, Illinois: University of Illinois Press, 2014.
MLA-referens (9:e uppl.)Vogan, Travis. Keepers of the Flame: NFL Films and the Rise of Sports Media. University of Illinois Press, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.