Columbia subject headings:
Costa Rica--Relations--Mexico.
Exiles--Costa Rica--History--20th century.
Exiles--Mexico--History--20th century.
Mexico--Relations--Costa Rica.
Harvard subject headings:
Costa Rica--Relations--Mexico.
Costa Ricans--Mexico.
Exiles--Costa Rica.
Exiles--Mexico.
Latin Americans--Costa Rica.
Mexico--Relations--Costa Rica.
Princeton subject headings:
Exiles--Costa Rica--History--20th century.
Exiles--Mexico--History--20th century.