Columbia subject headings:
Harvard subject headings:
Electrical engineers--Italy--Biography.
Marconi, Guglielmo, 1874-1937.
Radio--Italy--History.
Telegraph, Wireless--Marconi system--History.
Princeton subject headings:
Electrical engineers--Italy--Biography.
Marconi, Guglielmo, 1874-1937.
Radio--Italy--History.
Telegraph, Wireless--Marconi system--History.