Columbia subject headings:
Marche (Italy)--History--19th century.
Marche (Italy)--History--20th century.
Harvard subject headings:
Marche (Italy)--History--19th century.
Marche (Italy)--History--20th century.
Princeton subject headings:
Marche (Italy)--History--19th century--Biography.
Marche (Italy)--History--20th century--Biography.
Marche (Italy)--Politics and government.