Columbia subject headings:
Harvard subject headings:
Chaco (Argentina)--Boundaries--Congresses.
Indians of South America--Argentina--Chaco--Government policy--Congresses.
Indians of South America--Argentina--Chaco--Government relations--Congresses.
Land settlement--Government policy--Argentina--Chaco--Congresses.
Princeton subject headings:
Argentina--Territorial expansion--History.
Indians of South America--Argentina--Government relations--History.
Indians of South America--Argentina--Land tenure--History.
Land tenure--Argentina--Chaco--History.
Land tenure--Argentina--History.
Rural development--Argentina--Chaco--History.
Rural development--Argentina--History.