Columbia subject headings:
Harvard subject headings:
Europe--Emigration and immigration--Government policy.
Europe--Emigration and immigration--Social aspects.
Europe--Politics and government.
Immigrants--Government policy--Europe.
Political parties--Europe
Refugees--Government policy--Europe.
Social integration--Europe.
Princeton subject headings:
Europe--Emigration and immigration--Government policy.
Europe--Emigration and immigration--Social aspects.
Europe--Politics and government.
Immigrants--Government policy--Europe.
Political parties--Europe.
Refugees--Government policy--Europe.
Social integration--Europe.