 |
| |||
| Moordammkultur f; Sanddeckkultur f (von Mooren) | |||
| peatland cultivation by covering with sand: 2 phrases in 1 subject |
| Natural resourses and wildlife conservation | 2 |
|
| |||
| Moordammkultur f; Sanddeckkultur f (von Mooren) | |||
| peatland cultivation by covering with sand: 2 phrases in 1 subject |
| Natural resourses and wildlife conservation | 2 |