APA (7th ed.) Citation

Dante Alighieri, Cary, H. F., & Doré, G. (2004). The Divine Comedy by Dante, Illustrated, Purgatory, Volume 4. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dante Alighieri, Henry Francis Cary, and Gustave Doré. The Divine Comedy by Dante, Illustrated, Purgatory, Volume 4. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Dante Alighieri, et al. The Divine Comedy by Dante, Illustrated, Purgatory, Volume 4. Project Gutenberg, 2004.

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