Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/7606
Is Reference of International Day for the Preservation of the Ozone Layer-en#Sense
Journée internationale de la protection de la couche d'ozone-fr#Sense
Internationaler Tag für den Schutz der Ozonschicht-de#Sense
Kansainvälinen päivä otsonikerroksen suojaamiseksi-fi#Sense
Día Internacional de la Preservación de la Capa de Ozono-es#Sense
International dag for bevarelse af ozonlaget-da#Sense