Ununterbrochene Arbeitswoche :
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
Zentral-Völker-Verlag,
1930
Moskau : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/9C404D4C-A396-466C-9C83-383063D9CE63 |
| Published: | 1930 |
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