dreibasisch
| dreibasisch | |
| chem. | tribasique |
| |||
| tribasique | |||
|
dreibasisch : 30 phrases in 2 subjects |
| Chemistry | 29 |
| Textile industry | 1 |
| dreibasisch | |
| chem. | tribasique |
| |||
| tribasique | |||
|
dreibasisch : 30 phrases in 2 subjects |
| Chemistry | 29 |
| Textile industry | 1 |