Columbia subject headings:
Indians of Mexico--Mexico--Tlaxcala (State)--Population.
Indians of Mexico--Taxation--Mexico--Tlaxcala (State)
Tlaxcalan Indians--Population.
Tlaxcalan Indians--Taxation.
Harvard subject headings:
Indians of Mexico--Census.
Manuscripts, Tlaxcalan.
Tlaxcala (Mexico : State)--Census, 1557.
Tlaxcala (Mexico : State)--History--Sources.
Princeton subject headings:
Indians of Mexico--Mexico--Tlaxcala (State)--Taxation.
Indians of Mexico--Mexico--Tlaxcala(State)--Population.
Tlaxcalan Indians--Population.
Tlaxcalan Indians--Taxation.