Norsk WebDewey
type: ConceptScheme

Petroleum--foredling--sikkerhetsteknikk
type: Concept
component list: Petroleum
component list: e23
notation: 665.50289
broader: Petroleum
created: 2018-02-27
in scheme: Norsk WebDewey
modified: 2018-02-27

Petroleum
type: Concept
notation: 665.5
narrower: Petroleum--foredling--sikkerhetsteknikk