Columbia subject headings:
Harvard subject headings:
Great Britain--Social conditions--19th century.
Great Britain--Social conditions--20th century.
Labor movement--Great Britain--History.
Socialism--Great Britain
Socialism--Great Britain--History
Working class--Great Britain--History
Princeton subject headings:
Socialism--Great Britain--History--19th century.
Socialism--Great Britain--History--20th century.
Working class--Great Britain--History--19th century.
Working class--Great Britain--History--20th century.