| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Dictionary of the Welsh Language: v. 3, Parts 37-50: Geiriadur Prifysgol Cymru | 978-O-7O83-153O-9 (O-7O83-153O-5) | 2004 |
J.D. · J. Donovan · P. Donovan · P.J. · P.J. O'Donovan · Patrick J. Donovan · Peter J. O'Donovan