Columbia subject headings:
Indians of Mexico--Antiquities.
Indians of Mexico--History.
Mexico--Antiquities.
Harvard subject headings:
Ethnology--Mexico--Congresses.
Indians of Mexico--Antiquities--Congresses
Indians of Mexico--History--Congresses.
Mexico--Antiquities--Congresses.
Mexico--History--Congresses.
Princeton subject headings:
Indians of Mexico--Antiquities.
Indians of Mexico--History.
Mexico--Antiquities.