Columbia subject headings:
America--Antiquities.
America--Discovery and exploration.
Indians--Antiquities.
Indians--History.
Indians--Origin.
Harvard subject headings:
America--Antiquities.
America--Discovery and exploration.
Indians--Antiquities
Indians--History
Indians--Origin
Princeton subject headings:
America--Antiquities.
America--Discovery and exploration.
Indians--Antiquities.
Indians--History.
Indians--Origin.