Columbia subject headings:
Aztecs--History.
Aztecs--Politics and government.
Mexico--Civilization.
Nahuatl language--Writing.
Tepanecas--History.
Tepanecas--Politics and government.
Harvard subject headings:
Aztecs--History
Aztecs--Politics and government
Mexico--Civilization.
Nahuatl language--Writing.
Tepanecas--History.
Tepanecas--Politics and government.
Princeton subject headings:
Aztecs--History.
Aztecs--Politics and government.
Mexico--Civilization.
Nahuatl language--Writing.
Tepanecas--History.
Tepanecas--Politics and government.