Columbia subject headings:
Andes--Description and travel.
Gauchos.
Mines and mineral resources--South America.
Pampas (Argentina)
Harvard subject headings:
Andes--Description and travel
Gauchos
Mines and mineral resources--South America.
Pampas (Argentina)
Princeton subject headings:
Andes--Description and travel.
Gauchos.
Mines and mineral resources--South America.
Pampas (Argentina)