Stone, I. (1961). The agony and the ecstasy: A novel of Michelangelo / by Irving Stone (7. Auflage.). New American Library.
Lua i Stíl Chicago (17ú heag.)Stone, Irving. The Agony and the Ecstasy: A Novel of Michelangelo / by Irving Stone. 7. Auflage. New York: New American Library, 1961.
Lua MLA (8ú heag.)Stone, Irving. The Agony and the Ecstasy: A Novel of Michelangelo / by Irving Stone. 7. Auflage. New American Library, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.