Columbia subject headings:
Aztecs--Economic conditions.
Aztecs--Politics and government.
Aztecs--Social life and customs.
Mexico City (Mexico)--History.
Harvard subject headings:
Aztecs--Economic conditions.
Aztecs--Politics and government
Aztecs--Social life and customs
Mexico City (Mexico)--History
Princeton subject headings:
Aztecs--Economic conditions.
Aztecs--Politics and government.
Aztecs--Social life and customs.
Mexico City (Mexico)--History.