Columbia subject headings:
Labor unions--Political activity--Great Britain--History.
Labour Party (Great Britain)--History.
Socialism--Great Britain--History.
Working class--Political activity--Great Britain--History.
Harvard subject headings:
Labor unions--Political activity--Great Britain--History
Labor unions--Political activity--Great Britain--History.
Labour Party (Great Britain)--History.
Socialism--Great Britain
Socialism--Great Britain--History
Working class--Great Britain--Political activity--History.
Working class--Political activity--Great Britain--History.
Princeton subject headings: