Columbia subject headings:
Earth construction--Guatemala--History.
Earth construction--Mexico--History.
Indian architecture--Guatemala.
Indian architecture--Mexico.
Indians of Central America--Guatemala--Antiquities.
Indians of Mexico--Antiquities.
Harvard subject headings:
Princeton subject headings:
Central America--Antiquities.
Earth construction--Central America.
Earth construction--Mexico.
Earthworks (Archaeology)--Central America.
Earthworks (Archaeology)--Mexico.
Indian architecture--Central America.
Indian architecture--Mexico.
Indians of Central America--Antiquities.
Indians of Mexico--Antiquities.
Mexico--Antiquities.