APA (7th ed.) Citation

Innocentius III Ponifex Romanus. (1889). Opera omnia: Tomus IV. [Verlag nicht ermittelbar].

Chicago Style (17th ed.) Citation

Innocentius III Ponifex Romanus. Opera Omnia: Tomus IV. Parisiis: [Verlag nicht ermittelbar], 1889.

MLA (9th ed.) Citation

Innocentius III Ponifex Romanus. Opera Omnia: Tomus IV. [Verlag nicht ermittelbar], 1889.

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