Columbia subject headings:
Costa Rica--Economic conditions.
Geography--Costa Rica--History.
Geography--History.
Regional planning--Costa Rica.
Harvard subject headings:
Costa Rica--Economic conditions--Regional disparities.
Geography--Costa Rica--History.
Regional planning--Costa Rica.
Princeton subject headings:
Costa Rica--Economic conditions.
Geography--Costa Rica--History.
Geography--History.
Regional disparities--Costa Rica.
Regional planning--Costa Rica.