Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811
Is Reference of Pozzolana-en#Sense
Terre de pouzzolane-fr#Sense
Puzzolaanaarde-nl#Sense
Terra pozolana-pt#Sense
Tierra de puzolana-es#Sense
Puzzolan/erde-de#Sense
Πουζολάνη-el#Sense
Puzzolanjord-da#Sense
Terra di pozzolana-it#Sense