Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606001
Is Reference of Rule of three-en#Sense
Regola del tre-it#Sense
Dreisatzrechnung-de#Sense
Regeldetri-de#Sense
Règle de trois-fr#Sense
Regel van drieen-nl#Sense
Regla de tres-es#Sense
Dreisatz-de#Sense