Bányászat: Szénbányászat: Általában
| Institution: | Open Society Archives at Central European University |
|---|---|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10891/osa:a2a5da7d-f96c-4240-adfd-1f29a936bdc2 |
| Description not available. |
| Institution: | Open Society Archives at Central European University |
|---|---|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10891/osa:a2a5da7d-f96c-4240-adfd-1f29a936bdc2 |
| Description not available. |