Columbia subject headings:
Anarchism--Italy--Naples--History--20th century.
Naples (Italy)--Politics and government--1860-1945.
Press, Anarchist--Italy--Naples--History--20th century.
Harvard subject headings:
Anarchism--Italy--Naples--History--20th century.
Naples (Italy)--Politics and government--1860-1945.
Press, Anarchist--Italy--Naples--History--20th century.
Princeton subject headings: