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