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.

書目詳細資料
Corporate Authors: Philippines (Commonwealth) Bureau of Mines, Philippines (Republic). Bureau of Mines
格式: 圖書
語言:English
出版: Manila [s.n. 19--]
主題:
Mines and minerals resources > Philippines.