Crepeau, R. C. (2014). NFL football: A history of America's new national pastime. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)Crepeau, Richard C. NFL Football: A History of America's New National Pastime. Urbana, [Illinois]: University of Illinois Press, 2014.
Lua MLA (9ú heag.)Crepeau, Richard C. NFL Football: A History of America's New National Pastime. University of Illinois Press, 2014.
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