| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Expugnatis Hibernica: Conquest of Ireland | 978-0-901714-11-4 (0-901714-11-9) | 1978 |
| Itinerary Through Wales | 978-0-948714-33-7 (0-948714-33-6) | 1989 |
| The Journey Through Wales | 978-0-14-044339-4 (0-14-044339-8) | 1978 |
Gwasg Gregynog Ltd · Penguin · Royal Irish Academy