Columbia subject headings:
Argentina--History--To 1810.
Paraguay--History--To 1811.
Río de la Plata (Argentina and Uruguay)--History.
Harvard subject headings:
Argentina--History--To 1810.
Paraguay--History--To 1811.
Río de la Plata (Argentina and Uruguay)--History.
Princeton subject headings:
Paraguay--History--To 1811.
Río de la Plata (Argentina and Uruguay)--History.