APA (7th ed.) Citation

Usardi Martyrologium. Opera Saeculum IX.

Chicago Style (17th ed.) Citation

Usardi Martyrologium. Opera Saeculum IX. Parisiis: Apud Garnier Fratres.

MLA (8th ed.) Citation

Usardi Martyrologium. Opera Saeculum IX.

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