BAR Publishing · Princeton University Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Portals, Pilgrimage, and Crusade in Western Tuscany | 978-0-691-01172-1 (0-691-01172-9) | 1997 |
| Studies on Cosmatesque Pavements | 978-0-86054-100-4 (0-86054-100-2) | 1980 |