Columbia subject headings:
Migration, Internal--Mexico--History--Sources.
San Luis Potosí (Mexico : State)--History--Sources.
Tlaxcalan Indians--Mexico--San Luis Potosí (State)--History--Sources.
Harvard subject headings:
Migration, Internal--Mexico--History--Sources.
San Luis Potosí (Mexico : State)--History--Sources.
Tlaxcalan Indians--Mexico--San Luis Potosí (State)--History--Sources.
Princeton subject headings:
Tlaxcalan Indians--Mexico--San Luis Potosí (State)--History--Sources.