 |
| |||
| puits d'observation | |||
| |||
| puits témoin | |||
| скважина для наблюдения: 1 phrase in 1 subject |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| puits d'observation | |||
| |||
| puits témoin | |||
| скважина для наблюдения: 1 phrase in 1 subject |
| Natural resourses and wildlife conservation | 1 |