| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Geochemical Patterns in the Soils of Zeeland: Natural Variability Versus Anthropogenic Impact | 978-9O-68O9-37O-4 (9O-68O9-37O-3) | 2005 |
Geert Jan Spijker · J. S. · Jeroen Johannes Anthonius Spijker · Jeroen Spijker · Joyce Spijker