Bányászat: homokbánya
| Institution: | Open Society Archives at Central European University |
|---|---|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10891/osa:b05bb717-e75e-4834-b487-2f062b2ec6ea |
| Institution: | Open Society Archives at Central European University |
|---|---|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10891/osa:b05bb717-e75e-4834-b487-2f062b2ec6ea |