Brepols Publishers · Routledge
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Discovering New Worlds: Essays on Medieval Exploration and Imagination | 978-0-8153-0102-8 (0-8153-0102-2) | 1991 |
| The Hereford Map: Transcription and Translation of the Legends | 978-2-503-51056-9 (2-503-51056-6) | 2001 |