The prevention and supression of dust in mining, tunnelling and quarrying: third international report 1958-1962
Furkejuvvon:
| Searvvušdahkki: | |
|---|---|
| Materiálatiipa: | Girji |
| Giella: | eaŋgalasgiella |
| Almmustuhtton: |
Ginebra
International Labour Office
1967
|
| Fáttát: | |
| Fáddágilkorat: |
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