Columbia subject headings:
Harvard subject headings:
Central America--Foreign relations--1979-
Central America--Foreign relations--Europe.
Central America--Foreign relations--United States.
Europe--Foreign relations--Central America.
United States--Foreign relations--Central America.
Princeton subject headings:
Central America--Foreign relations--1979-
Central America--Foreign relations--Europe.
Central America--Foreign relations--United States.
Europe--Foreign relations--Central America.
United States--Foreign relations--Central America.