Columbia subject headings:
Europe--Politics and government--1918-1945.
International cooperation--Periodicals.
World politics--Periodicals.
Harvard subject headings:
Europe--Politics and government--1914-1945.
International cooperation
World politics--Periodicals
Princeton subject headings:
Europe--Politics and government--1918-1945.
International cooperation--Periodicals.
Periodicals.
World politics--Periodicals.