Columbia subject headings:
Harvard subject headings:
History, Modern--1945-1989
Insurgency--History--20th century.
Nineteen sixty-eight, A.D.
Political violence--History--20th century.
Radicalism--History--20th century
Princeton subject headings:
Italy--Politics and government--1945-1976.
Nineteen sixty-eight, A.D.
Student movements--Italy--History--20th century.