Columbia subject headings:
Federal government--Great Britain.
Socialism--Great Britain.
Harvard subject headings:
Federal government--Great Britain--History--20th century.
Federal government--Great Britain.
Great Britain--Politics and government--20th century.
Socialism--Great Britain
Socialism--Great Britain--20th century.
Princeton subject headings:
Federal government--Great Britain--History--20th century.
Great Britain--Politics and government--20th century.
Socialism--Great Britain--History--20th century.