Ratificatie van het verdrag van Washington betreffende den arbeidstijd :
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
Nijgh & van Ditmar,
1921.
Rotterdam : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/55C23D24-E32C-45E1-87DA-4B49B41AF9FD |
| Published: | 1921. |
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