APA (7th ed.) Citation

Francis of Assisi, S. Regula non bullata. Brepols Publishers.

Chicago Style (17th ed.) Citation

Francis of Assisi, Saint. Regula Non Bullata. Turnhout: Brepols Publishers.

MLA (9th ed.) Citation

Francis of Assisi, Saint. Regula Non Bullata. Brepols Publishers.

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