Columbia subject headings:
Harvard subject headings:
Education--Latin America--History--Congresses.
Education--Spain--History--Congresses.
Families--Latin America--History--Congresses.
Families--Spain--History--Congresses.
Princeton subject headings:
Education--Latin America--History--Congresses.
Education--Spain--History--Congresses.
Families--Latin America--History--Congresses.
Families--Spain--History--Congresses.