APA (7th ed.) Citation

Adelboldus Bishop of Utrecht. Epistula ad Silvestrum papam. Brepols Publishers.

Chicago Style (17th ed.) Citation

Adelboldus Bishop of Utrecht. Epistula Ad Silvestrum Papam. Turnhout: Brepols Publishers.

MLA (9th ed.) Citation

Adelboldus Bishop of Utrecht. Epistula Ad Silvestrum Papam. Brepols Publishers.

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