Hours of work in coal mines
- Författare
- International Labour Office International Labour Organisation
- (Coal Mines Committee, Third Session, Pittsburgh, April 1949., "Fourth Item on the Agenda", International Labour Organisation)
- Genre
- Ej skönlitteratur
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| International Labour Office | 1949 | Schweiz, Geneva | 58 sidor. |