Columbia subject headings:
Mexico--Civilization--Congresses.
Mexico--Historiography--Congresses.
Mexico--History--Congresses.
Harvard subject headings:
Civilization--Historiography--Congresses.
Mexico--Civilization--Congresses.
Mexico--Historiography--Congresses.
Mexico--History, Local--Congresses.
Mexico--History--Congresses.
Mexico--Social conditions--Congresses.
Political culture--Mexico--History--Congresses.
Social history--Historiography--Congresses.
Social movements--Mexico--History--Congresses.
Princeton subject headings:
Mexico--Civilization--Congresses.
Mexico--Historiography--Congresses.
Mexico--History--Congresses.