Safety provisions for underground work in coal mines Vol. 2, Draft recommendations - report to the Preparatory Technical Conference, Geneva, October 1939
- Författare
- Preparatory Technical Conference on Safety in Coal Mines (1939 : Genève) International Labour Office
- Genre
- Ej skönlitteratur
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| International Labour Office | 1939 | Schweiz, Geneva | 112 sidor. |