Crichton, R. (1966). The secret of Santa Vittoria. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Crichton, Robert. The Secret of Santa Vittoria. New York: Simon & Schuster, 1966.
Lua MLA (9ú heag.)Crichton, Robert. The Secret of Santa Vittoria. Simon & Schuster, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.