Columbia subject headings:
Radio broadcasting--Italy--Alessandria (Province)--History--20th century.
Radio stations--Italy--Alessandria (Province)--History--20th century.
Television broadcasting--Italy--Alessandria--History--20th century.
Television stations--Italy--Alessandria (Province)--History--20th century.
Harvard subject headings:
Radio broadcasting--Italy--Alessandria (Province)--History--20th century.
Radio stations--Italy--Alessandria (Province)--History--20th century.
Television broadcasting--Italy--Alessandria--History--20th century.
Television stations--Italy--Alessandria (Province)--History--20th century.
Princeton subject headings: