1. Alighieri, Dante, The Divine Comedy, trans. by Mark Musa, 3 vols (Harmondsworth: Penguin, 1984–86), i: Inferno (1984)
2. Alighieri, Dante, La Commedia secondo l’antica vulgata, ed. by Giorgio Petrocchi, 4 vols, 2nd edn (Florence: Le Lettere, 1994)
3. Augustine, Confessions, trans. by William Watts, Loeb Classical Library, 26–27, 2 vols (Cambridge, MA: Harvard University Press, 1912)
4. Augustine, Confessions, ed. by James J. O’Donnell, 3 vols (Oxford: Clarendon Press, 1992)
5. Augustine, Confessions, trans. by Francis J. Sheed, ed. by Michael P. Foley, intro. by Peter Brown, 2nd edn (Indianapolis: Hackett, 2006)