Columbia subject headings:
Great Britain--Historiography.
Great Britain--History--20th century.
Great Britain--Politics and government--20th century.
Harvard subject headings:
Great Britain--Historiography.
Great Britain--History--20th century.
Great Britain--Politics and government--20th century.
Princeton subject headings:
Great Britain--Historiography.
Great Britain--History--20th century.
Great Britain--Politics and government--20th century.