Dinas a Sir Abertawe · HarperCollins
| title | ISBN-13 | year of publication |
|---|---|---|
| AONBs in the Landscape: Proceedings of the 40th Anniversary Conference | 978-1-901461-00-8 | 1996 |
| Brecon Beacons | 978-0-00-736770-2 | 2014 |
| Collins New Naturalist Library – Gower | 978-0-00-716066-2 | 2006 |
| Gower | 978-0-00-741899-2 | 2010 |
| Gower | 978-0-00-716067-9 | 2006 |