Columbia subject headings:
Harvard subject headings:
Forced migration--Europe, Central--History--20th century--Congresses.
Forced migration--Europe, Eastern--History--20th century--Congresses.
Minorities--Europe, Central--History--20th century--Congresses.
Minorities--Europe, Eastern--History--20th century--Congresses.
Nation-state--Congresses.
Nationalism--Europe, Central--History--19th century--Congresses.
Nationalism--Europe, Central--History--20th century--Congresses.
Princeton subject headings:
Forced migration--Europe, Central--History--20th century--Congresses.
Forced migration--Europe, Eastern--History--20th century--Congresses.
Minorities--Europe, Central--History--20th century--Congresses.
Minorities--Europe, Eastern--History--20th century--Congresses.
Nation-state--Congresses.
Nationalism--Europe, Central--History--19th century--Congresses.
Nationalism--Europe, Central--History--20th century--Congresses.