Columbia subject headings:
Ethnoecology--South America.
Indians of South America--Government relations.
Indians of South America--Land tenure.
South America--Environmental conditions.
Harvard subject headings:
Ethnoecology--South America.
Indians of South America--Government relations
Indians of South America--Land tenure
Indians of South America--Science.
Indigenous peoples--Land tenure--America.
South America--Environmental conditions.
Princeton subject headings:
Indians of South America--Government relations.
Indians of South America--Land tenure.
Indigenous peoples--Ecology--South America.
South America--Environmental conditions.