Columbia subject headings:
Cotton growing--Argentina--Chaco.
Cotton trade--Argentina--Chaco.
Rural development--Argentina--Chaco.
Harvard subject headings:
Cotton growing--Argentina--Chaco.
Cotton trade--Argentina--Chaco.
Rural development--Argentina--Chaco.
Princeton subject headings:
Cotton growing--Argentina--Chaco.
Cotton trade--Argentina--Chaco.
Rural development--Argentina--Chaco.