Columbia subject headings:
Harvard subject headings:
Catholic Church--Portugal--History--20th century.
Catholic Church--Portugal--Relations.
Church and state--Portugal--History--20th century.
Nationalism--Portugal--History--20th century.
Nationalism--Religious aspects--Catholic Church--History--20th century.
Portugal--Politics and government--1933-1974.
Princeton subject headings:
Catholic Church--Portugal--History--20th century.
Church and state--Portugal--History--20th century.
Nationalism--Portugal--History--20th century.
Portugal--Church history--20th century.
Portugal--Politics and government--1910-1974.