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  1. 1

    Mining industry and the environment.

    出版 1977
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    Mining industry and the environment.
  2. 2

    Today, Itogon--tomorrow Pangasinan 由 Cimatu, Frank

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    Today, Itogon--tomorrow Pangasinan
  3. 3

    A situationer on small-scale mining's large-scale problems.

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    A situationer on small-scale mining's large-scale problems.
  4. 4

    Digging into the pocketminers' operations 由 Gimenez, Lulu A.

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    Digging into the pocketminers' operations
  5. 5

    They came, saw, mined 由 San Juan, Ronald

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    They came, saw, mined
  6. 6

    Finding gold, losing life the death trail from the mines to the rivers 由 Dizon, Alfred

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    Finding gold, losing life the death trail from the mines to the rivers
  7. 7

    Incredible bulk mining 由 Dizon, Alfred

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    Incredible bulk mining
  8. 8

    Mankayan people resist mining.

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    Mankayan people resist mining.
  9. 9

    Prevention of water pollution by Benguet mines 由 Martin, Laurence P.

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    Prevention of water pollution by Benguet mines

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