Columbia subject headings:
Harvard subject headings:
Africa, Portuguese-speaking--History--Autonomy and independence movements.
Decolonization--Africa, Portuguese-speaking--History--20th century.
Labor movement--Portugal--History--20th century.
Portugal--Colonies--Africa--History--20th century.
Portugal--History--Revolution, 1974
Portugal--Politics and government--1933-1974
Portugal--Politics and government--1974-
Portugal--Social conditions--20th century
Princeton subject headings:
Decolonization--Africa, Portuguese-speaking--History--20th century.
Labor movement--Portugal--History--20th century.
Portugal--Colonies--Africa--History--20th century.
Portugal--History--Revolution, 1974.
Portugal--Politics and government--1974-
Portugal--Social conditions--20th century.