Columbia subject headings:
Indians of Mexico--Mexico--Mexico, Valley of--Antiquities.
Mexico, Valley of (Mexico)--Antiquities.
Mexico--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--Mexico
Indians of Mexico--Antiquities
Indians of Mexico--Mexico--Mexico, Valley of--Antiquities
Mexico, Valley of (Mexico)--Antiquities.
Mexico--Antiquities.
Princeton subject headings:
Excavations (Archaeology)--Mexico.
Mexico--Antiquities.