Columbia subject headings:
Nineteen sixty-eight, A.D.--Congresses.
Student movements--Italy--History--20th century--Congresses.
Youth--Political activity--Italy--History--20th century--Congresses.
Harvard subject headings:
Protest movements--Italy--History--20th century--Congresses.
Student movements--Italy--History--20th century--Congresses.
Youth--Italy--Political activity--Congresses.
Princeton subject headings:
Protest movements--Italy--History--20th century--Congresses.
Student movements--Italy--History--20th century--Congresses.
Youth--Political activity--Italy--Congresses.