- Literature and Religion in the Later Middle Ages: Philological Studies in Honor of Siegfrid Wenzel (Medieval and Renaissance Texts and Studies)
- The Early History of Greed: The Sin of Avarice in Early Medieval Thought and Literature
- The treatise on vices and virtues in Latin and the vernacular (Typologie des sources du Moyen Age occidental)
- A Supplement to Morton W. Bloomfield Et Al., 'Incipits of Latin Works on the Virtues and Vices, 1100-1500 A.D.'
- Sin: Essays on the Moral Tradition in the Western Middle Ages (Variorum Collected Studies Series)