U.S. Geological Survey: earth sciences in the public service
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  • 责任者：Unknown
  • 责任方式：Unknown
  • 出版者：U.S. GPO
  • 出版年：1900
  • 出版地：s.l.
  • 出版日期：1900/1/1 0:00:00
  • 价格：0
  • 分类号：254.2
  • 语言：English
摘要
Our Nation faces some serious questions cvoncerning the availability and use of land, water, energy, and mineral resources of the Earth.
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