APA (7th ed.) Zitazioa

Sheridan, S. A fighter's heart: One man's journey through the world of fighting. Grove Press.

Chicago Style (17th ed.) Zitazioa

Sheridan, Sam. A Fighter's Heart: One Man's Journey Through the World of Fighting. New York: Grove Press.

MLA (9th ed.) Zitazioa

Sheridan, Sam. A Fighter's Heart: One Man's Journey Through the World of Fighting. Grove Press.