- FondsMG 146 - W.O. Kupsch fonds
- Série organiqueJ. Audio-Visual Materials
- 16 en plus...
- PièceWOK 1-17 - The Netherlands without dikes
- PièceWOK 1-18 - Damage to agriculture through inundation in the Netherlands, 1945
- PièceWOK 1-19 - Map of the Netherlands during Roman times
- PièceWOK 1-20 - Map of the Netherlands, 16th century
- PièceWOK 1-21 - Windmills pumping water to higher levels in the Netherlands
- PièceWOK 1-22 - A section of Polderland, Holland
- PièceWOK 1-23 - Extent of alluvium deposits in the Netherlands
- PièceWOK 1-24 - Distribution of petrologically similar sediments of Mio-Pliocene - the Netherlands
- PièceWOK 1-25 - Horst and graben structure of the southern Netherlands
- 2280 en plus...