| |||
| закрепление песков | |||
| закрепление дюн | |||
|
dune fixation : 3 phrases in 3 subjects |
| Environment | 1 |
| Makarov | 1 |
| Natural resourses and wildlife conservation | 1 |
| |||
| закрепление песков | |||
| закрепление дюн | |||
|
dune fixation : 3 phrases in 3 subjects |
| Environment | 1 |
| Makarov | 1 |
| Natural resourses and wildlife conservation | 1 |