Columbia subject headings:
Harvard subject headings:
Emigration and immigration law--European Union countries
Emigration and immigration law--Germany
European Union countries--Emigration and immigration
European Union countries--Emigration and immigration--Government policy
Foreign workers, European--Germany.
Germany--Emigration and immigration
Germany--Emigration and immigration--Government policy.
Princeton subject headings:
Emigration and immigration law--European Union countries.
Emigration and immigration law--Germany.
European Union countries--Emigration and immigration--Government policy.
European Union countries--Emigration and immigration.
Germany--Emigration and immigration--Government policy.
Germany--Emigration and immigration.