Columbia subject headings:
Harvard subject headings:
Great Britain--Politics and government--1964-1979.
Great Britain--Politics and government--1979-1997.
Labour Party (Great Britain)
National Union of Railwaymen.
Railroads--Employees--Labor unions--Great Britain.
Princeton subject headings:
Great Britain--Politics and government--1964-1979.
Great Britain--Politics and government--1979-1997.
Labour Party (Great Britain)
National Union of Railwaymen (Great Britain)
Railroads--Employees--Labor unions--Great Britain.