Prevention of Accidents Due to Electricity Underground in Coal Mines
| Formato: | Desconocido |
|---|---|
| Lenguaje: | inglés |
| Publicado: |
Geneva :
International Labour Organization, represented by the International Labour Office (ILO),
1959
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| Materias: | |
| Acceso en línea: | http://www.vlex.com/source/11277 |