Columbia subject headings:
Arabs--Migrations.
Refugees--Europe.
Refugees--Government policy--Europe.
Harvard subject headings:
Arabs--Migrations.
Refugees, Arab--Europe.
Refugees--Government policy--Europe.
Refugees--Legal status, laws, etc.--Europe.
Syria--History--Civil War, 2011---Refugees.
Princeton subject headings:
Arabs--Migrations.
Refugees--Europe.
Refugees--Government policy--Europe.