 |
| |||
| management of the environment and natural resources (Alexander Demidov); environmental studies and natural resources management (Ivan Pisarev) | |||
| экология и природопользование: 6 a las frases, 3 temas |
| General | 4 |
| Petróleo | 1 |
| Sajalín | 1 |
|
| |||
| management of the environment and natural resources (Alexander Demidov); environmental studies and natural resources management (Ivan Pisarev) | |||
| экология и природопользование: 6 a las frases, 3 temas |
| General | 4 |
| Petróleo | 1 |
| Sajalín | 1 |