Columbia subject headings:
Harvard subject headings:
Ethnology--India, Northeastern--Congresses.
India, Northeastern--Scheduled tribes--Congresses.
India, Northeastern--Social life and customs--Congresses.
Princeton subject headings:
Ethnology--India, Northeastern--Congresses.
India, Northeastern--Scheduled tribes--Congresses.
India, Northeastern--Social life and customs--Congresses.