Model code of safety regulations for underground work in coal mines for the guidance of governments and of the coal-mining industry
- Författare
- International Labour Office
- Genre
- Ej skönlitteratur
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| International Labour Office | 1950 | Schweiz, Geneva | 1 vol. |