Columbia subject headings:
Labour Party (Great Britain)--History--20th century.
Socialism--Great Britain--History--20th century.
Harvard subject headings:
Great Britain--Politics and government--20th century.
Labour Party (Great Britain)--History--20th century.
Socialism--Great Britain--20th century.
Socialism--Great Britain--History--20th century
Princeton subject headings:
Labour Party (Great Britain)
Socialism--Great Britain.