Cambridge University Press · Rowman & Littlefield Publishers
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Monks and Laymen in Byzantium, 843-1118 | Paperback | 978-0-521-31950-8 (0-521-31950-1) | 2003 |
| Monks and Laymen in Byzantium, 843-1118 | Hardcover | 978-0-521-26558-4 (0-521-26558-4) | 1995 |
| The Character of King Arthur in Medieval Literature | " | 978-0-8476-7118-2 (0-8476-7118-6) | 1983 |