Freeman, M. (2012). Undefeated: Inside the 1972 Miami Dolphins' perfect season. It Books : an imprint of HarperCollins.
Lua i Stíl Chicago (17ú heag.)Freeman, Michael. Undefeated: Inside the 1972 Miami Dolphins' Perfect Season. New York: It Books : an imprint of HarperCollins, 2012.
Lua MLA (8ú heag.)Freeman, Michael. Undefeated: Inside the 1972 Miami Dolphins' Perfect Season. It Books : an imprint of HarperCollins, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.