Columbia subject headings:
Harvard subject headings:
Andes Region--Antiquities--Congresses.
Central America--Antiquities--Congresses.
Indians of Central America--Antiquities--Congresses
Indians of Mexico--Antiquities--Congresses
Indians of South America--Andes Region--Antiquities--Congresses
Mexico--Antiquities--Congresses.
Princeton subject headings:
Andes Region--Antiquities--Congresses.
Central America--Antiquities--Congresses.
Indians of Central America--Antiquities--Congresses.
Indians of Mexico--Antiquities--Congresses.
Indians of South America--Andes Region--Antiquities--Congresses.
Mexico--Antiquities--Congresses.