Miners' circular / US Department of the Interior, Bureau of Mines
Resource type: Ressourcentyp: ZeitschriftPeriodicalLanguage: English Volumes: Bände: Show volumesZeige BändePublisher: Washington, DC : [Verlag nicht ermittelbar], 1911-Subject(s): Genre/Form: DDC classification:- 620 660
- Darin: Coal mine accident prevention course. Washington, 1949
- 26=1920 von: Safety and health almanac. Washington, DC : Government Printing Office, 1918
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