Safety provisions for underground work in coal mines. Report to the preparatory technical conference. Geneva, October 1939. Vol. 1. National legislation
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
International Labour Office,
1939.
Geneva : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/80594A60-F94F-46C9-B9E1-CD67E89CD9E1 |
| Published: | 1939. |
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