Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Chaîne pétrolière-fr#Sense
Produção de petróleo-pt#Sense
Öljyntuotanto-fi#Sense
Produção petrolífera-pt#Sense
Olieproductie-nl#Sense
Producción de petróleo (cadena)-es#Sense
Παραγωγή πετρελαίου (αλυσίδα παραγωγής)-el#Sense
Catena petrolifera-it#Sense
Ölförderung-de#Sense
Olieproduktion-da#Sense
Oil production (chain)-en#Sense
Oljeproduktion-sv#Sense
Oliefremstilling-da#Sense