Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of International Gas Union-en#Sense
União Internacional da Indústria do Gás-pt#Sense
UIIG-fr#Sense
UIIG-pt#Sense
IGU-en#Sense
Union internationale de l'industrie du gaz-fr#Sense