The employment of young persons in underground work in mines of all kinds
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
ILO,
1964.
Geneva : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/86699D8B-5687-4BFD-B4D6-D83761270868 |
| Published: | 1964. |
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