Columbia subject headings:
Harvard subject headings:
Argentina--History--To 1810.
Indians of South America--Rio de la Plata Region (Argentina and Uruguay)--Government relations.
Rio de la Plata Region (Argentina and Uruguay)--Colonization.
Rio de la Plata Region (Argentina and Uruguay)--Economic conditions.
Princeton subject headings:
Argentina--History--1535-1617.
Rio de la Plata Region--History.