Mortensen, C. (1991). Playing for keeps: How one man kept the mob from sinking its hooks into pro football. Simon & Schuster.
Chicago-Zitierstil (17. Ausg.)Mortensen, Chris. Playing for Keeps: How One Man Kept the Mob from Sinking Its Hooks into Pro Football. New York [u.a.]: Simon & Schuster, 1991.
MLA-Zitierstil (9. Ausg.)Mortensen, Chris. Playing for Keeps: How One Man Kept the Mob from Sinking Its Hooks into Pro Football. Simon & Schuster, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.