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: |
International labour office,
1965.
Geneva : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/62FCDD4F-AFED-4FFF-A4BC-49EE1121992C |
| Published: | 1965. |
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