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effective grain size : 7 do fraz, 6 tematyki |
| Chemia | 1 |
| Geologia | 2 |
| Gleboznawstwo | 1 |
| Górnictwo | 1 |
| Pola naftowe | 1 |
| Ropa / ropa naftowa | 1 |
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|
effective grain size : 7 do fraz, 6 tematyki |
| Chemia | 1 |
| Geologia | 2 |
| Gleboznawstwo | 1 |
| Górnictwo | 1 |
| Pola naftowe | 1 |
| Ropa / ropa naftowa | 1 |