Columbia subject headings:
Harvard subject headings:
Portugal--Colonies--History--20th century.
Portugal--Foreign relations--1933-1974.
Portugal--Politics and government--1933-1974.
United Nations--Portugal.
Princeton subject headings:
Portugal--Colonies--History--20th century.
Portugal--Foreign relations--1933-1974.
Portugal--Politics and government--1933-1974.
United Nations--Portugal.