Columbia subject headings:
Costa Rica--Economic conditions--1948-
Costa Rica--Politics and government--1948-1986.
Costa Rica--Politics and government--1986-
Costa Rica--Social conditions.
Technology--Social aspects--Costa Rica.
Harvard subject headings:
Costa Rica--Economic conditions--1948-
Costa Rica--Politics and government--1948-1986.
Costa Rica--Politics and government--1986-
Costa Rica--Social conditions.
Technology--Social aspects--Costa Rica.
Princeton subject headings:
Costa Rica--Economic conditions--1948-
Costa Rica--Social conditions.