Columbia subject headings:
Harvard subject headings:
Education--Europe--Congresses
Europe--Emigration and immigration--Congresses.
Families--Research--Europe--Congresses.
Immigrant families--Europe--Congresses.
Princeton subject headings:
Families--Europe--Congresses.
Immigrant families--Europe--Congresses.
Immigrants--Education--Europe--Congresses.
Immigrants--Europe--Social conditions--Congresses.