APA (7e ed.) Bronvermelding

Freeman, M. (2012). Undefeated: Inside the 1972 Miami Dolphins' perfect season. It Books : an imprint of HarperCollins.

Chicago (17e ed.) Bronvermelding

Freeman, Michael. Undefeated: Inside the 1972 Miami Dolphins' Perfect Season. New York: It Books : an imprint of HarperCollins, 2012.

MLA (8e ed.) Bronvermelding

Freeman, Michael. Undefeated: Inside the 1972 Miami Dolphins' Perfect Season. It Books : an imprint of HarperCollins, 2012.