Columbia subject headings:
Costa Rica--Biography--Congresses.
History--Methodology--Congresses.
Popular culture--Costa Rica--History--20th century--Congresses.
Social classes--Costa Rica--History--20th century--Congresses.
Harvard subject headings:
Costa Rica--Biography--Congresses.
History--Methodology--Congresses
Popular culture--Costa Rica--History--20th century--Congresses.
Social classes--Costa Rica--History--20th century--Congresses.
Princeton subject headings:
Costa Rica--Civilization--Congresses.
Popular culture--Costa Rica--Congresses.