Actinoidene
type: Concept
narrower: Thorium
notation: 546.42

Thorium
type: Concept
created: 2010-02-04
modified: 2012-09-18
alternative label: Thorium--kjemi
broader: Actinoidene
in scheme: Norsk WebDewey
notation: 546.422

Norsk WebDewey
type: ConceptScheme