Columbia subject headings:
Europe--History--1945-
Nineteen sixty-eight, A.D.
Harvard subject headings:
Nineteen sixty, A.D.--Congresses.
Riots--France--History--20th century--Congresses.
Student movements--Europe--Congresses.
Princeton subject headings:
Nineteen sixty, A.D.--Congresses.
Riots--France--History--20th century--Congresses.
Student movements--Europe--Congresses.