200 illegal mine tunnels closed. IN Across the Nation

200 illegal mine tunnels closed. IN Across the Nation

Détails bibliographiques
Publié dans:Philippine Daily Inquirer Ja-D, Mon-Sat (2013).
Auteur principal: Carvajal, Nancy C.
Format: Article
Langue:English
Sujets:
Mining engineering.
Mining > Safety measures.
Mining > Law & legislation.