De verlaging van de leerlingenschaal bij het lager onderwijs :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
's-Gravenhage,
1956.
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/6D5CC583-1C52-4352-B5FD-E230581FBD9A |
| Published: | 1956. |
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