Columbia subject headings:
Indians--Civil rights--Congresses.
Indians--Government relations--Congresses.
Indians--Land tenure--Congresses.
Mixe Indians--Civil rights--Congresses.
Harvard subject headings:
Princeton subject headings:
Indians of Central America--Legal status, laws, etc.--Congresses.
Indians of Mexico--Legal status, laws, etc.--Congresses.
Indians of South America--Legal status, laws, etc.--Congresses.