Crichton, M. (1999). Timeline. Alfred A. Knopf,.
Lua i Stíl Chicago (17ú heag.)Crichton, Michael. Timeline. New York: Alfred A. Knopf,, 1999.
Lua MLA (9ú heag.)Crichton, Michael. Timeline. Alfred A. Knopf,, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.