Generelle emner vedrørende naturgasser
type: Concept
created: 2010-02-04
modified: 2018-01-22
broader: Naturgass
in scheme: Norsk WebDewey
notation: 333.82331

Naturgass
type: Concept
narrower: Generelle emner vedrørende naturgasser
notation: 333.8233

Norsk WebDewey
type: ConceptScheme