| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Gweld Yn Glir - Cleary Drawn: Gwydr Cyfoes Damhegol - Contemporary Figurative Glass | 978-1-9O5865-21-5 (1-9O5865-21-X) | 2009 | Philip Hughes |
G. P. · Gregory N. Parsons · Gregory Pierson · Gregory Procknow