Columbia subject headings:
Colombia--Economic conditions.
Encomiendas (Latin America)
Indians of South America--Employment--Colombia.
Transportation--Colombia--History--16th century.
Harvard subject headings:
Colombia--Economic conditions.
Encomiendas (Latin America)
Indians of South America--Employment--Colombia.
Transportation--Colombia--History--16th century.
Princeton subject headings:
Colombia--Economic conditions.
Colombia--History--To 1810.
Indians of South America--Colombia--Commerce.
Spaniards--Colombia--History.