Columbia subject headings:
Great Britain--Commercial policy.
Great Britain--Economic conditions--1918-1945.
United States--Commercial policy.
United States--Economic conditions--1918-1945.
Harvard subject headings:
Great Britain--Commercial policy.
Great Britain--Economic conditions--1918-1945.
United States--Commercial policy.
United States--Economic conditions--1918-1945.
Princeton subject headings:
Great Britain--Commercial policy.
Great Britain--Economic conditions--1918-1945.
United States--Commercial policy.
United States--Economic conditions--1918-1945.