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Preferred term

622.338 Olje, oljeskifer, tjæresand, naturgass

Broader concept

Broader concept

Entry terms

Alternative terms for the concept.
  • Ekstraksjon (utvinning)--petroleum
  • Petroleum--ekstraksjon

Identifier

  • ocd00155898

Notation

Code that uniquely identifies a concept within a concept scheme.
  • 622.338

URI

http://dewey.info/class/622.338/e23/

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