APA (7th ed.) Citation

William, o. S., Arnaldus, A. o. B., Geoffrey, o. A., & Costello, H. (2015). The first life of Bernard of Clairvaux. Liturgical Press.

Chicago Style (17th ed.) Citation

William, of Saint-Thierry, Abbot of Bonneval Arnaldus, of Auxerre Geoffrey, and Hilary Costello. The First Life of Bernard of Clairvaux. Collegeville, Minnesota: Liturgical Press, 2015.

MLA (9th ed.) Citation

William, of Saint-Thierry, et al. The First Life of Bernard of Clairvaux. Liturgical Press, 2015.