J. A. · J. Aitchison · J. W. · W.A.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Geography of the Welsh Language, 1961-1991 | 978-0-7083-1236-0 (0-7083-1236-5) | 1994 | Harold Carter · J.W. Aichison |
| Welsh Language, 1961-81: An Interpretative Atlas | 978-0-7083-0906-3 (0-7083-0906-2) | 1985 | Harold Carter |