 |
| |||
| differentieringsprincippet; princippet om differentiering | |||
|
differentiation principle : 3 do fraz, 1 tematyki |
| Pospolicie | 3 |
|
| |||
| differentieringsprincippet; princippet om differentiering | |||
|
differentiation principle : 3 do fraz, 1 tematyki |
| Pospolicie | 3 |