| |||
| forurening forårsaget af nitrater fra difuse kilder | |||
|
pollution caused by nitrates from diffuse sources : 2 צירופים, 1 נושאים |
| סביבה | 2 |
| |||
| forurening forårsaget af nitrater fra difuse kilder | |||
|
pollution caused by nitrates from diffuse sources : 2 צירופים, 1 נושאים |
| סביבה | 2 |