Columbia subject headings:
Harvard subject headings:
Chaco (Argentina)--Economic conditions.
Formosa (Argentina : Province)--Economic conditions.
Land reform--Argentina--Chaco--History--20th century.
Land reform--Argentina--Formosa--History--20th century.
Land tenure--Argentina--Chaco--History--20th century.
Land tenure--Argentina--Formosa--History--20th century.
Princeton subject headings:
Chaco (Argentina)--Economic conditions.
Chaco (Argentina)--History.
Formosa (Argentina : Province)--Economic conditions.
Formosa (Argentina : Province)--History.