Columbia subject headings:
Harvard subject headings:
Central America--Antiquities.
Extinct cities--Central America.
Extinct cities--Mexico
Extinct cities--North America.
Indians of Central America--Antiquities
Indians of Mexico--Antiquities
Indians of North America--Antiquities.
Mexico--Antiquities.
North America--Antiquities
Princeton subject headings:
Central America--Antiquities.
Extinct cities--Central America.
Extinct cities--Mexico.
Extinct cities--North America.
Indians of Central America--Antiquities.
Indians of Mexico--Antiquities.
Indians of North America--Antiquities.
Mexico--Antiquities.
North America--Antiquities.