De moeilijkheden bij de Ned. steenkolenmijnbouw
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Ned. R.K. Mijnw. Bond,
z.j.
Heerlen : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/82FDD365-1EDB-4E52-BC86-20BCC2B7977A |
| Published: | z.j. |
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