Columbia subject headings:
Harvard subject headings:
Angola--History--Revolution, 1961-1975.
Decolonization--Portugal--History--20th century.
Portugal--Colonies--History--20th century.
Portugal--History--1910-1974.
Princeton subject headings:
Angola--History--Revolution, 1961-1975.
Decolonization--Portugal--History--20th century.
Portugal--Colonies--History--20th century.
Portugal--History--1910-1974.