 |
| |||
| indústria mineira | |||
| indústrias extrativas | |||
|
mining and quarrying : 6 do fraz, 3 tematyki |
| Marketing | 2 |
| Ochrona środowiska | 3 |
| Statystyka | 1 |
|
| |||
| indústria mineira | |||
| indústrias extrativas | |||
|
mining and quarrying : 6 do fraz, 3 tematyki |
| Marketing | 2 |
| Ochrona środowiska | 3 |
| Statystyka | 1 |