Columbia subject headings:
Ethnology--America--History--Congresses.
Indians--Study and teaching (Higher)--America--History--Congresses.
Harvard subject headings:
Ethnology--America--History--Congresses.
Indians--Study and teaching (Higher)--America--History--Congresses.
Princeton subject headings:
Ethnology--America--History--Congresses.
Indians--Study and teaching (Higher)--America--History--Congresses.