Columbia subject headings:
Emigration and immigration law--European Union countries--Congresses.
Mediterranean Region--Emigration and immigration--Congresses.
Harvard subject headings:
Emigration and immigration law--European Union countries--Congresses.
Mediterranean Region--Emigration and immigration--Congresses.
Princeton subject headings:
Emigration and immigration law--European Union countries--Congresses.
Mediterranean Region--Emigration and immigration--Congresses.