Columbia subject headings:
Harvard subject headings:
Amaral, Diogo Freitas do
Portugal--History--Revolution, 1974.
Portugal--Politics and government--1933-1974.
Portugal--Politics and government--1974-
Princeton subject headings:
Amaral, Diogo Freitas do.
Portugal--History--Revolution, 1974.
Portugal--Politics and government--1933-1974.
Portugal--Politics and government--1974-