APA (7th ed.) Citation

Dante Alighieri & Norton, C. E. (1999). The Divine Comedy, Volume 2, Purgatory. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dante Alighieri and Charles Eliot Norton. The Divine Comedy, Volume 2, Purgatory. Project Gutenberg, 1999.

MLA (9th ed.) Citation

Dante Alighieri and Charles Eliot Norton. The Divine Comedy, Volume 2, Purgatory. Project Gutenberg, 1999.

Warning: These citations may not always be 100% accurate.