Columbia subject headings:
Europe--Politics and government--1918-1945.
Great Britain--Foreign relations--20th century.
World politics--1900-1945.
Harvard subject headings:
Europe--Politics and government--1918-1945.
Great Britain--Foreign relations--20th century.
World politics--20th century
Princeton subject headings:
Europe--Politics and government--1918-1945.
Great Britain--Foreign relations--20th century.
World politics--20th century.