Columbia subject headings:
Central America--Foreign relations--Latin America.
Central America--Politics and government--1971-
Latin America--Foreign relations--Central America.
Harvard subject headings:
Central America--Foreign relations--1979-
Central America--Foreign relations--Latin America.
Central America--Foreign relations.
Central America--Politics and government--1979-
Latin America--Foreign relations--1948-1980.
Latin America--Foreign relations--Central America.
Princeton subject headings: