| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Imprese del conte Ruggero e del fratello Roberto il Guiscardo | 978-88-7804-171-4 (88-7804-171-8) | 2008 |
| Ruggero I e Roberto il Guiscardo | 978-88-86810-10-4 (88-86810-10-5) | 2002 |
| The Deeds of Count Roger of Calabria and Sicily and of His Brother Duke Robert Guisc | 978-0-472-11459-7 (0-472-11459-X) | 2005 |
Ciolfi · Flaccovio · University of Michigan Press