| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Seven Competences of the Sustainable Professional | 978-0-8153-8130-3 (0-8153-8130-1) | 2018 | Niko Roorda |
| The Seven Competences of the Sustainable Professional: Developing Best Practice in a Work Setting | 978-0-8153-8123-5 (0-8153-8123-9) | 2018 | " |
| The Seven Competencies of the Sustainable Professional: Developing Best Practice in a Work Setting | 978-0-8153-8124-2 (0-8153-8124-7) | 2018 | " |