Columbia subject headings:
Harvard subject headings:
Europe--Emigration and immigration--Congresses.
Europe--Languages--Political aspects--Congresses.
Linguistic minorities--Europe--Congresses.
Linguistic minorities--Europe--Cross-cultural studies--Congresses.
Sociolinguistics--Europe--Congresses.
Princeton subject headings:
Europe--Emigration and immigration--Congresses.
Europe--Languages--Political aspects--Congresses.
Linguistic minorities--Europe--Congresses.
Linguistic minorities--Europe--Cross-cultural studies--Congresses.
Sociolinguistics--Europe--Congresses.