 |
| |||
| poluição pelos nitratos a partir de fontes difusas | |||
|
pollution caused by nitrates from diffuse sources : 2 צירופים, 1 נושאים |
| סביבה | 2 |
|
| |||
| poluição pelos nitratos a partir de fontes difusas | |||
|
pollution caused by nitrates from diffuse sources : 2 צירופים, 1 נושאים |
| סביבה | 2 |