Columbia subject headings:
Emigration and immigration law--European Union countries.
European Union countries--Emigration and immigration.
European Union countries--Politics and government.
Judicial assistance--European Union countries.
Law enforcement--European Union countries.
Law--European Union countries.
Harvard subject headings:
Emigration and immigration law--European Union countries--Congresses.
Emigration and immigration law--European Union countries.
European Union countries--Emigration and immigration--Congresses.
European Union countries--Emigration and immigration.
European Union countries--Politics and government--Congresses.
European Union countries--Politics and government.
Judicial assistance--European Union countries--Congresses.
Judicial assistance--European Union countries.
Law enforcement--European Union countries
Law enforcement--European Union countries--Congresses.
Law--European Union countries
Law--European Union countries--Congresses
Princeton subject headings: