Columbia subject headings:
Finland--Economic conditions--1918-
Iceland--Economic conditions--1918-1945.
Scandinavia--Economic conditions.
Harvard subject headings:
Finland--Economic conditions--1918-
Iceland--Economic conditions--1918-
Scandinavia--Economic conditions.
Princeton subject headings:
Finland--Economic conditions--1918-
Iceland--Economic conditions--1918-.
Scandinavia--Economic conditions--1918-.