World's longest tunnel inaugurated in Switzerland. IN World.

World's longest tunnel inaugurated in Switzerland. IN World.

Dades bibliogràfiques
Publicat a:The Philippine Star Ja-D, Mon-Sat (2016).
Format: Article
Idioma:English
Matèries:
World's longest tunnel.
Tunnel > engineering.
Tunnel > construction.
Accés en línia:http://dspace.engglib2.upd.edu.ph/jspui