Columbia subject headings:
Aztecs--Politics and government.
Incas--Politics and government.
Indians of Mexico--Government relations.
Indians of Mexico--Politics and government.
Indians of South America--Andes--Government relations.
Indians of South America--Andes--Politics and government.
Harvard subject headings:
Aztecs--Politics and government
Incas--Politics and government
Indians of Mexico--Government relations
Indians of Mexico--Politics and government
Indians of South America--Andes Region--Government relations.
Indians of South America--Andes Region--Politics and government
Princeton subject headings:
Aztecs--Politics and government.
Incas--Politics and government.
Indians of Mexico--Government relations.
Indians of Mexico--Politics and government.
Indians of South America--Andes--Government relations.
Indians of South America--Andes--Politics and government.