Stone, I. (1978). The agony and the ecstasy: A biographical novel of Michelangelo / Irving Stone (15. Auflage.). Fontana.
Čikaški stil citiranja (17. izdanje)Stone, Irving. The Agony and the Ecstasy: A Biographical Novel of Michelangelo / Irving Stone. 15. Auflage. Glasgow: Fontana, 1978.
MLA način citiranja (8. izdanje)Stone, Irving. The Agony and the Ecstasy: A Biographical Novel of Michelangelo / Irving Stone. 15. Auflage. Fontana, 1978.
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