T.T. · Th. A. J. Toonen · Theo A. J. Toonen
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | 
|---|---|---|---|
| Comparative Civil Service Systems in the 21st Century | 978-1-137-32578-5 (1-137-32578-X) | 2015 | Frits M. Van der Meer · J. Raadschelders | 
| The Civil Service in the 21st Century: Comparative Perspectives | 978-1-4039-9719-7 (1-4039-9719-5) | 2007 | J. Raadschelders · F. Van der Meer · Frits M. Van der Meer |