Columbia subject headings:
Harvard subject headings:
Argentina--Dependency on foreign countries.
Argentina--Economic conditions
Argentina--Politics and government.
Peru--Dependency on foreign countries.
Peru--Economic conditions.
Peru--Politics and government
Princeton subject headings:
Argentina--Dependency on foreign countries.
Argentina--Economic conditions.
Argentina--Politics and government.
Peru--Dependency on foreign countries.
Peru--Economic conditions.
Peru--Politics and government.