Columbia subject headings:
Europe--Commercial policy.
Europe--Economic conditions--1918-1945.
Europe--Politics and government--1918-1945.
International cooperation.
Harvard subject headings:
Europe--Commercial policy.
Europe--Economic conditions--1918-1945.
Europe--Politics and government--1918-1945.
International cooperation.
Princeton subject headings:
Europe--Commercial policy.
Europe--Economic conditions--1918-1945.
Europe--Politics and government--1914-.
International cooperation.