Hours of work in postal services
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
International Labour Office,
1935.
Geneva : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/4F829AB2-3ED2-4556-ACF2-0C6BC378168E |
| Published: | 1935. |
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