 |
| |||
| Fernablesung f; indirekte Anzeige | |||
| lecture à distance: 13 phrases in 4 subjects |
| Aviation | 2 |
| Chemistry | 1 |
| Measuring instruments | 9 |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| Fernablesung f; indirekte Anzeige | |||
| lecture à distance: 13 phrases in 4 subjects |
| Aviation | 2 |
| Chemistry | 1 |
| Measuring instruments | 9 |
| Natural resourses and wildlife conservation | 1 |