Columbia subject headings:
Great Britain--Politics and government--1979-1997.
Labour Party (Great Britain)
Social Democratic Party (Great Britain)
Harvard subject headings:
Great Britain--Politics and government--1979-1997.
Labour Party (Great Britain)
Social Democratic Party (Great Britain)
Social-Democratic Party of America.
Princeton subject headings:
Great Britain--Politics and government--1979-1997.
Labour Party (Great Britain)
Social Democratic Party (Great Britain)