Columbia subject headings:
Central America--Economic conditions--1979-
Central America--Foreign relations--United States.
Central America--Politics and government--1979-
Central America--Social conditions--1979-
United States--Foreign relations--Central America.
Harvard subject headings:
Central America--Economic conditions--1979-
Central America--Foreign relations--United States
Central America--Politics and government--1979-
Central America--Social conditions--1979-
United States--Foreign relations--Central America
Princeton subject headings:
Central America--Economic conditions--1979-
Central America--Foreign relations--United States.
Central America--Politics and government--1979-
Central America--Social conditions--1979-
United States--Foreign relations--Central America.