Columbia subject headings:
Nuba Mountains (Sudan)--Economic conditions.
Nuba Mountains (Sudan)--History.
Nuba Mountains (Sudan)--Social life and customs.
Harvard subject headings:
Ethnic groups--Sudan--Nuba Mountains Region.
Ethnology--Sudan--Nuba Mountains Region.
Nuba (African people)
Princeton subject headings:
Nuba Mountains (Sudan)--Economic conditions.
Nuba Mountains (Sudan)--History.
Nuba Mountains (Sudan)--Social life and customs.