Uorganiske gasser
type: Concept
narrower: Nitrogen
notation: 553.9

Nitrogen
type: Concept
created: 2010-02-04
modified: 2012-10-24
alternative label: Nitrogen--økonomisk geologi
broader: Uorganiske gasser
in scheme: Norsk WebDewey
notation: 553.93

Norsk WebDewey
type: ConceptScheme