| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Auxerre Reliefs: Harbinger of the Renaissance in France During the Reign of Philip Le Bel | 978-91-554-0240-2 (91-554-0240-2) | 1974 |
| Mediaeval Baptismal Fonts: An Iconographical Study | 978-91-7174-004-5 (91-7174-004-X) | 1985 |