Columbia subject headings:
Andes Region--Economic integration.
Cartagena Agreement
Ecuador--Economic conditions--1972-
Ecuador--Economic policy.
Petroleum industry and trade--Ecuador.
Harvard subject headings:
Andes Region--Economic integration.
Cartagena Agreement
Ecuador--Economic conditions--1972-
Ecuador--Economic policy.
Petroleum industry and trade--Ecuador
Princeton subject headings:
Ecuador--Economic conditions--1972-
Ecuador--Economic policy.