Verkorting van de arbeidstijd :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Ned. Inst. v. praevent. geneesk.,
1961.
Leiden : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/58392FF8-415A-4E6F-9F71-4A25096C57A5 |
| Published: | 1961. |
|---|