G.B. Ladner: opere
- 1959 The Idea of Reform: Its Impact on Christian Thought and Action in the Age of the Fathers, Cambridge, Mass., [rif.]
- 1961 Vegetation Symbolism and the Concept of Renaissance, New York, [rif.]
- in: M. Meiss (a cura di), De artibus opuscola XL. Essays in Honor of Erwin Panofsky