Columbia subject headings:
Harvard subject headings:
Great Britain--Foreign relations--Portugal.
Portugal--Foreign relations--Great Britain.
Portugal--Politics and government--1910-1974.
Salazar, António de Oliveira, 1889-1970
Princeton subject headings:
Neutrality--Portugal--History--20th century.
Portugal--Foreign relations--Great Britain.
Portugal--History--1910-1974.
Salazar, António de Oliveira, 1889-1970.
Spain--History--Civil War, 1936-1939--Foreign public opinion.