Columbia subject headings:
Harvard subject headings:
Andes Region--Civilization--Congresses.
Human ecology--Andes Region--Congresses.
Princeton subject headings:
Andes Region--Antiquities--Congresses.
Andes Region--Civilization--Congresses.
Ecology--Andes region--Congresses.
Human ecology--Andes region--Congresses.
Indians of South America--Andes region--Culture--Congresses.