Bányászat: Szénbányászat: Mátrai Szénbányák
| Institution: | Open Society Archives at Central European University |
|---|---|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10891/osa:2b02bf54-17cc-46f8-b389-2046be0965ca |
| Institution: | Open Society Archives at Central European University |
|---|---|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10891/osa:2b02bf54-17cc-46f8-b389-2046be0965ca |