Columbia subject headings:
Harvard subject headings:
Andes Region--Economic conditions.
Andes Region--Economic policy.
Andes Region--Social conditions.
Economic development--Environmental aspects--Andes Region.
Sustainable development--Andes Region.
Princeton subject headings:
Andes Region--Economic conditions.
Andes Region--Economic policy.
Andes Region--Social conditions.
Economic development--Environmental aspects--Andes Region.
Sustainable development--Andes Region.