Stoping methods and costs in the gold mines of the Baguio district, Mountain Province, Philippines.

Stoping methods and costs in the gold mines of the Baguio district, Mountain Province, Philippines.

Manylion Llyfryddiaeth
Awduron Corfforaethol: Philippines (Commonwealth) Bureau of Mines, Philippines (Republic). Bureau of Mines
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Manila [s.n. 19--]
Pynciau:
Mines and minerals resources > Philippines.