Columbia subject headings:
Great Britain--Politics and government--20th century.
Trades Union Congress.
Working class--Great Britain.
Harvard subject headings:
Citrine, Walter, 1887-1983.
Great Britain--Politics and government--20th century.
Labor movement--Great Britain
Trades Union Congress.
Working class--Great Britain
Princeton subject headings:
Great Britain--Politics and government--20th century.
Trades Union Congress.
Working class--Great Britain.