APA (7th ed.) Citation

Ursus, R. (1922). De obsidione Tiphernatum liber: A.1474. Zanichelli.

Chicago Style (17th ed.) Citation

Ursus, Robertus. De Obsidione Tiphernatum Liber: A.1474. Bologna: Zanichelli, 1922.

MLA (9th ed.) Citation

Ursus, Robertus. De Obsidione Tiphernatum Liber: A.1474. Zanichelli, 1922.

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