Alighieri, D., & Sayers, D. L. (1979). The Divine Comedy of Dante Alighieri: the Florentine: Cantico 2. Purgatory. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Alighieri, Dante, agus Dorothy L. Sayers. The Divine Comedy of Dante Alighieri: The Florentine: Cantico 2. Purgatory. Harmondsworth: Penguin Books, 1979.
Lua MLA (9ú heag.)Alighieri, Dante, agus Dorothy L. Sayers. The Divine Comedy of Dante Alighieri: The Florentine: Cantico 2. Purgatory. Penguin Books, 1979.
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