Nafta
type: Concept
created: 2005-03-02
modified: 2016-12-13
broader: Kaustobiolīti
in scheme: subject
narrower: Naftas produkti
note: Source: Latvijas padomju enciklopēdija, 1986:
preferred label: Petroleum @en

Kaustobiolīti
type: Concept
narrower: Nafta
preferred label: Caustobioliths @en

Naftas produkti
type: Concept
broader: Nafta
preferred label: Petroleum products @en