Columbia subject headings:
Harvard subject headings:
Latin America--Ethnic relations--History--Congresses.
Latin America--Foreign relations--Spain--Congresses.
Portugal--Ethnic relations--History--Congresses.
Spain--Colonies--America--Congresses.
Spain--Ethnic relations--History--Congresses.
Spain--Foreign relations--Latin America--Congresses.
Princeton subject headings:
Latin America--Ethnic relations--History--Congresses.
Latin America--Foreign relations--Spain--Congresses.
Latin America--Relations--Spain--Congresses.
Portugal--Ethnic relations--History--Congresses.
Spain--Colonies--America--Congresses.
Spain--Ethnic relations--History--Congresses.
Spain--Foreign relations--Latin America--Congresses.
Spain--Relations--Latin America--Congresses.