Columbia subject headings:
Great Britain--Politics and government--1901-1936.
Political parties--Great Britain--History.
Tariff--Great Britain--History.
Harvard subject headings:
Great Britain--Politics and government--1901-1936.
Political parties--Great Britain--History
Tariff--Great Britain--History.
Princeton subject headings:
Great Britain--Politics and government--1901-1936.
Political parties--Great Britain--History.
Tariff--Great Britain--History.