Columbia subject headings:
Correality and solidarity--European Union countries--Congresses.
European Union countries--Social policy--Congresses.
Social legislation--European Union countries--Congresses.
Harvard subject headings:
Correality and solidarity--European Union countries--Congresses.
European Union countries--Social policy--Congresses.
Social legislation--European Union countries--Congresses.
Princeton subject headings:
Correality and solidarity--European Union countries--Congresses.
European Union countries--Social policy--Congresses.
Social legislation--European Union countries--Congresses.