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 141

Structure

Hierarchy

  • Section: C - Mining and quarrying
  • Divsion: 14 - Other mining and quarrying
  • Group: 141 - Quarrying of stone, sand and clay

Class

  • 1410 - Quarrying of stone, sand and clay

Links