Columbia subject headings:
Great Britain--Social policy--Congresses.
Labor movement--Great Britain--History--Congresses.
Labor movement--Netherlands--History--Congresses.
Netherlands--Social policy--Congresses.
Public welfare--Great Britain--History--Congresses.
Public welfare--Netherlands--History--Congresses.
Welfare state--History--Congresses.
Harvard subject headings:
Belgium--Social policy--Congresses.
Great Britain--Social policy--Congresses.
Labor movement--Belgium--History--Congresses.
Labor movement--Great Britain--History--Congresses.
Public welfare--Belgium--History--Congresses.
Public welfare--Great Britain--History--Congresses.
Welfare state--History--Congresses.
Princeton subject headings: