Columbia subject headings:
Harvard subject headings:
Atlantic Coast (Costa Rica)--Economic conditions--Congresses.
Atlantic Coast (Costa Rica)--Social conditions--Congresses.
Costa Rica--Economic conditions--1948---Congresses.
Costa Rica--Social conditions--Congresses.
Research--Costa Rica--Congresses.
Princeton subject headings:
Limón (Costa Rica : Province)--Economic Conditions--Congresses.
Limón (Costa Rica : Province)--Social conditions--Congresses.