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  1. 1

    Small-scale gold mining a geographic perspective of the use and development of a mineral resource 由 Bayle, Romeo L.

    出版 1999
    Thesis

    Small-scale gold mining a geographic perspective of the use and development of a mineral resource
  2. 2

    Paracale mining a way of life, death. 由 Soltes, Jonas Cabiles

    Article

    Paracale mining a way of life, death.

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