Brown, D. (2004). Digital fortress. St. Martin's Paperbacks.
Lua i Stíl Chicago (17ú heag.)Brown, Dan. Digital Fortress. New York: St. Martin's Paperbacks, 2004.
Lua MLA (9ú heag.)Brown, Dan. Digital Fortress. St. Martin's Paperbacks, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.