Columbia subject headings:
Communism--Great Britain--History.
Fascism--Great Britain--History.
Great Britain--Politics and government--20th century.
Harvard subject headings:
Communism--Great Britain--History.
Fascism--Great Britain--History.
Great Britain--Politics and government--20th century.
Popular fronts--Great Britain--History.
Princeton subject headings:
Communism--History--20th century.
Great Britain--Politics and government--1910-1936.
Great Britain--Politics and government--1936-1945.
Popular fronts--Great Britain.
Popular fronts.