慶應義塾大学 商学部・商学研究科

新保一成 研究室

開発と環境の経済分析...

NIC 1998 - code 101

Structure

Hierarchy

  • Section: C - Mining and quarrying
  • Divsion: 10 - Mining of coal and lignite; extraction of peat
  • Group: 101 - Mining and agglomeration of hard coal

Class

  • 1010 - Mining and agglomeration of hard coal

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