APA (7th ed.) Citation

Porta, G. (2000). Villani, Giovanni (c. 1280-1348).

Chicago Style (17th ed.) Citation

Porta, Giuseppe. Villani, Giovanni (c. 1280-1348). 2000.

MLA (9th ed.) Citation

Porta, Giuseppe. Villani, Giovanni (c. 1280-1348). 2000.

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