Columbia subject headings:
Beef industry--Central America.
Cattle trade--Central America.
Central America--Foreign relations--United States.
Central America--Politics and government--1979-
Cotton trade--Central America.
United States--Foreign relations--Central America.
Harvard subject headings:
Beef industry--Central America.
Cattle trade--Central America.
Central America--Foreign relations--United States.
Central America--Politics and government--1979-
Cotton trade--Central America.
United States--Foreign relations--Central America.
Princeton subject headings:
Beef industry--Central America.
Cattle trade--Central America.
Central America--Foreign relations--United States.
Central America--Politics and government--1979-
Cotton trade--Central America.
United States--Foreign relations--Central America.