APA (7th ed.) Citation

John, B., Callus, D. A., & Dunne, M. W. (2013). Treatise on the soul Auctores Britannici medii aevi.

Chicago Style (17th ed.) Citation

John, Blund, Daniel A. Callus, and Michael W. Dunne. "Treatise on the Soul." Auctores Britannici Medii Aevi 2013.

MLA (8th ed.) Citation

John, Blund, et al. "Treatise on the Soul." Auctores Britannici Medii Aevi, 2013.