K. W. · Kees Woutersen Dirk Hilbers
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Canary Islands: Tenerife & La Gomera | 978-94-91648-06-9 (94-91648-06-3) | 2015 | Dirk Hilbers |
| Crossbill Guides: Spanish Pyrenees and Steppes of Huesca - Spain | 978-90-5011-382-3 (90-5011-382-6) | 2012 | " |