Sheridan, S. A fighter's heart: One man's journey through the world of fighting. Grove Press.
Chicago-referens (17:e uppl.)Sheridan, Sam. A Fighter's Heart: One Man's Journey Through the World of Fighting. New York: Grove Press.
MLA-referens (9:e uppl.)Sheridan, Sam. A Fighter's Heart: One Man's Journey Through the World of Fighting. Grove Press.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.