Columbia subject headings:
Harvard subject headings:
Brazil--Politics and government--20th century
Christianity and politics--Brazil--History--20th century.
Christianity and politics--Portugal--History--20th century.
Church and state--Brazil--History--20th century.
Church and state--Portugal--History--20th century.
Dictatorship--Brazil--History--20th century.
Dictatorship--Portugal--History--20th century.
Portugal--Politics and government--20th century
Princeton subject headings:
Brazil--Politics and government--20th century.
Christianity and politics--Brazil--History--20th century.
Christianity and politics--Portugal--History--20th century.
Dictatorship--Brazil--History--20th century.
Dictatorship--Portugal--History--20th century.
Portugal--Politics and government--20th century.