Columbia subject headings:
Denmark--Social conditions.
Finland--Social conditions.
Iceland--Social conditions.
Norway--Social conditions.
Public welfare--Scandinavia.
Scandinavia--Social conditions.
Sweden--Social conditions.
Harvard subject headings:
Public welfare--Scandinavia.
Scandinavia--Social conditions.
Princeton subject headings:
Public welfare--Scandinavia.
Scandinavia--Social conditions.