Preliminary report of the Miners' Phthisis Prevention Committee = Voorlopig rapport van de Kommissie ter voorkoming van mijntering.
- South Africa. Miners' Phthisis Prevention Committee.
- Date:
- 1912
Licence: In copyright
Credit: Preliminary report of the Miners' Phthisis Prevention Committee = Voorlopig rapport van de Kommissie ter voorkoming van mijntering. Source: Wellcome Collection.
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