Columbia subject headings:
Harvard subject headings:
Encomiendas (Latin America)
Mexico--History--Conquest, 1519-1540.
Mexico--History--Spanish colony, 1540-1810.
Southwest, New--History--To 1848.
Princeton subject headings:
Mexico--History--Conquest, 1519-1540.
Mexico--History--Spanish colony, 1540-1810.
Southwest, New--History--To 1848.