| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Handbook of Knowledge-Based Coaching: From Theory to Practice | 978-0-470-62444-9 (0-470-62444-2) | 2011 | Leni Wildflower |
| The Philosophy and Practice of Coaching: Insights and Issues for a New Era | 978-0-470-98721-6 (0-470-98721-9) | 2008 | David B. Drake · Kim Gørtz |