Columbia subject headings:
Harvard subject headings:
Decolonization--Portugal.
Portugal--Colonies--History--20th century.
Portugal--Foreign relations--1910-1933.
Portugal--Foreign relations--1933-1974.
Princeton subject headings:
Decolonization--Portugal.
Portugal--Colonies--History--20th century.
Portugal--Foreign relations--1910-1933.
Portugal--Foreign relations--1933-1974.