Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606002
Is Reference of Permocarboon-nl#Sense
Permocarbonico-it#Sense
Permocarbonifero-it#Sense
Permokarbon-da#Sense
Permo-houiller-fr#Sense
Anthracolithique-fr#Sense
Permokarbon-de#Sense
Antracolitico-it#Sense
Permocarboniferous-en#Sense