Proeven over verstandelijke ontwikkeling op Leidsche scholen
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
Leiden,
1922.
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/F40777D3-AAAF-4E8A-A6DD-D2EE9B2FC711 |
| Published: | 1922. |
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