Columbia subject headings:
Harvard subject headings:
Anti-communist movements--Italy--History--20th century--Sources.
Communism and Christianity--Catholic Church--Italy--History--20th century--Sources.
Communism--Italy--History--20th century--Sources.
Meiattini, Severino, -1948--Assassination--Sources.
Socialism--Italy--History--20th century--Sources.
Syndicalism--Italy--History--20th century--Sources.
Working class--Italy--Political activity--History--20th century--Sources.
Princeton subject headings:
Anti-communist movements--Italy--History--20th century--Sources.
Communism and Christianity--Catholic Church--Italy--History--20th century--Sources.
Communism--Italy--History--20th century--Sources.
Meiattini, Severino, -1948--Assassination--Sources.
Socialism--Italy--History--20th century--Sources.
Syndicalism--Italy--History--20th century--Sources.
Working class--Italy--Political activity--History--20th century--Sources.