Lua APA (7ú heag.)
Daniel, D. K. (2011). Tough as nails: The life and films of Richard Brooks. University of Wisconsin Press.
Lua i Stíl Chicago (17ú heag.)
Daniel, Douglass K. Tough as Nails: The Life and Films of Richard Brooks. Madison, Wis.: University of Wisconsin Press, 2011.
Lua MLA (9ú heag.)
Daniel, Douglass K. Tough as Nails: The Life and Films of Richard Brooks. University of Wisconsin Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.