Columbia subject headings:
Harvard subject headings:
Decentralization in government--Portugal--History--19th century.
Decentralization in government--Portugal--History--20th century.
Local government--Portugal--History--19th century.
Local government--Portugal--History--20th century.
Princeton subject headings:
Decentralization in government--Portugal--History--19th century.
Decentralization in government--Portugal--History--20th century.
Local government--Portugal--History--19th century.
Local government--Portugal--History--20th century.