B. W. · P W. · Plas y Brenin · Y.B.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| International Mountain Trekking: A Practical Manual for Trekkers & Leaders | 978-0-9541511-7-1 (0-9541511-7-8) | 2013 |
| Top Tips for Coaches: Over 300 Top Tips and Handy Hints for Canoe and Kayak Coaches | 978-0-9531956-6-4 (0-9531956-6-X) | 2002 |