Columbia subject headings:
Conflict management--Congresses.
Democracy--Congresses.
Peace movements--Congresses.
Peace-building--Congresses.
Protest movements--Congresses.
Harvard subject headings:
Conflict management--Congresses
Democracy--Congresses
Peace movements--Congresses.
Peace-building--Congresses
Protest movements--Congresses.
Princeton subject headings:
Conflict management--Congresses.
Democracy--Congresses.
Peace movements--Congresses.
Peace-building--Congresses.
Protest movements--Congresses.