Columbia subject headings:
Harvard subject headings:
Agricultural industries--Argentina.
Agriculture and state--Argentina.
Agriculture--Argentina--History.
Agriculture--Economic aspects--Argentina--Pampas.
Farm produce--Argentina.
Food supply--Argentina.
Pampas (Argentina)--Rural conditions.
Princeton subject headings:
Agriculture and state--Argentina.
Agriculture--Economic aspects--Argentina--Pampas.
Pampas (Argentina)--Rural conditions.