Columbia subject headings:
Civilization, Modern--Congresses.
Cultural relations--Congresses.
History, Modern--Congresses.
Multiculturalism--Congresses.
World history--Congresses.
Harvard subject headings:
Civilization, Modern--Congresses
Cultural relations--Congresses.
History, Modern--Congresses.
Multiculturalism--Congresses
World history--Congresses.
Princeton subject headings:
Civilization, Modern--Congresses.
Cultural relations--Congresses.
History, Modern--Congresses.
Multiculturalism--Congresses.
World history--Congresses.