 |
| |||
| landbouwproefstation n | |||
| experimenteel station | |||
| experimental station: 5 phrases in 4 subjects |
| Communications | 2 |
| General | 1 |
| Mineral products | 1 |
| Natural sciences | 1 |
|
| |||
| landbouwproefstation n | |||
| experimenteel station | |||
| experimental station: 5 phrases in 4 subjects |
| Communications | 2 |
| General | 1 |
| Mineral products | 1 |
| Natural sciences | 1 |