Columbia subject headings:
Río de la Plata (Viceroyalty)--Economic conditions.
Spain--Colonies--Commerce--Río de la Plata (Argentina and Uruguay)
Spain--Colonies--Río de la Plata (Argentina and Uruguay)--Administration.
Harvard subject headings:
Rio de la Plata Region (Argentina and Uruguay)--Commerce--Spain--History.
Spain--Commerce--Rio de la Plata Region (Argentina and Uruguay)--History.
Princeton subject headings:
Rio de la Plata--Economic conditions.
Spain--Colonies--Rio de la Plata--Administration.
Spain--Colonies--Rio de la Plata--Commerce.