R. C. · Roy C. · Roy Edward Clayton
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Lakeland Mountain Challenges: A Guide for Hillwalkers and Fellrunners | 978-0-9515996-8-6 (0-9515996-8-2) | 1999 | Ronald Turnbull · Ronald Turnball |
| The Welsh Three Thousand Foot Challenges: A Guide for Walkers and Hill Runners | 978-0-9515996-6-2 (0-9515996-6-6) | 1997 | Ronald Turnbull · Ronald Turnball |