Orrialdearen edukietara joan

2 emaitza barruan Lekua Bitterfeld-Wolfen

Bitterfeld-Wolfen

Town in the district Anhalt-Bitterfeld, Saxony-Anhalt, Germany

Didacta '93 - Die Internationale Bildungsmesse, 01.-05.03.1993, Messe Stuttgart-Killesberg

State Archives of Baden-Württemberg

certificate of employment

Museum of City History Leipzig