Follett, K. (1979). Triple: Ken Follett. Pan Books.
Lua i Stíl Chicago (17ú heag.)Follett, Ken. Triple: Ken Follett. London: Pan Books, 1979.
Lua MLA (8ú heag.)Follett, Ken. Triple: Ken Follett. Pan Books, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.