Search Results - Philippines (Commonwealth) Bureau of Mines

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  1. 1

    Information circular. no. 1-.

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  2. 2

    Annual report.

    Published 1937
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  3. 3

    Bureau of MInes Annual report.

    Published 1937
    Book


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  4. 4

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

    Book


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