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  1. 1

    Guidelines in the acquisition of permit for sand and gravel and other construction materials

    منشور في 1990
    كتاب

    Guidelines in the acquisition of permit for sand and gravel and other construction materials
  2. 2

    Directory of mines and quarries

    منشور في 1987
    كتاب

    Directory of mines and quarries
  3. 3

    Directory of mines and quarries

    منشور في 1987
    كتاب

    Directory of mines and quarries
  4. 4

    Philippine Rock Industries, Incorporated grinding rock becomes a successful business venture حسب Ravenholt, Albert

    منشور في 1968
    كتاب

    Philippine Rock Industries, Incorporated grinding rock becomes a successful business venture
  5. 5

    Practical operating procedures for progressive rehabilitation of sand and gravel sites حسب Johnson, Craig

    منشور في 1966
    كتاب

    Practical operating procedures for progressive rehabilitation of sand and gravel sites
  6. 6

    Simultaneous excavation and rehabilitation of sand, and gravel sites حسب Bauer, Anthony M.

    منشور في 1965
    كتاب

    Simultaneous excavation and rehabilitation of sand, and gravel sites

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