Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2021001
Is Reference of United Nations Tin Conference, 1980-en#Sense
Zinnkonferenz der Vereinten Nationen-de#Sense
De Forenede Nationers Tinkonference, 1980-da#Sense
Tinconferentie 1980 der Verenigde Naties-nl#Sense
Conférence des Nations unies sur l'étain, 1980-fr#Sense