 |
| |||
| научно-технический отдел (sophistt) | |||
| Scientific and Technical department: 4 Phrasen in 4 Thematiken |
| Bauwesen | 1 |
| Bibliothekswesen | 1 |
| Erdöl | 1 |
| Erdöl und Erdgas | 1 |
|
| |||
| научно-технический отдел (sophistt) | |||
| Scientific and Technical department: 4 Phrasen in 4 Thematiken |
| Bauwesen | 1 |
| Bibliothekswesen | 1 |
| Erdöl | 1 |
| Erdöl und Erdgas | 1 |