Columbia subject headings:
Harvard subject headings:
Indians of South America--Brazil--Economic conditions--Periodicals.
Indians of South America--Brazil--Social conditions--Periodicals.
Labor--Brazil--Periodicals.
Poor--Brazil--Periodicals.
Princeton subject headings:
Indians of South America--Brazil--Economic conditions--Periodicals.
Indians of South America--Brazil--Social conditions--Periodicals.
Labor--Brazil--Periodicals.
Poor--Brazil--Periodicals.