Columbia subject headings:
Bureaucracy--Portugal--History--Congresses.
Decentralization in government--Portugal--History--Congresses.
Decentralization in government--Spain--History--Congresses.
Portugal--Politics and government--19th century--Congresses.
Portugal--Politics and government--20th century--Congresses.
Spain--Politics and government--19th century--Congresses.
Spain--Politics and government--20th century--Congresses.
Harvard subject headings:
Central-local government relations--Portugal--History--19th century.
Central-local government relations--Spain--History--19th century.
Central-local government relations--Spain--History--20th century.
Portugal--Politics and government--19th century.
Portugal--Politics and government--20th century.
Princeton subject headings:
Central-local government relations--Portugal--History--19th century.
Central-local government relations--Spain--History--19th century.
Central-local government relations--Spain--History--20th century.
Portugal--Politics and government--19th century.
Portugal--Politics and government--20th century.