 |
| |||
| загрязнение морской среды из наземных источников | |||
| marine pollution from land -based sources: 10 phrases in 4 subjects |
| Ecology | 3 |
| Name of organization | 1 |
| United Nations | 5 |
| Water supply | 1 |
|
| |||
| загрязнение морской среды из наземных источников | |||
| marine pollution from land -based sources: 10 phrases in 4 subjects |
| Ecology | 3 |
| Name of organization | 1 |
| United Nations | 5 |
| Water supply | 1 |