Columbia subject headings:
Arabian Peninsula--Social conditions.
Arabian Peninsula--Social life and customs.
Najd (Saudi Arabia)--History.
Suhūl (Arab tribe)
Harvard subject headings:
Arabian Peninsula--Social conditions.
Arabian Peninsula--Social life and customs
Suhūl (Arab tribe).
Princeton subject headings:
Arabian Peninsula--Social conditions.
Arabian Peninsula--Social life and customs.
Najd (Saudi Arabia)--History.
Suhūl (Arab tribe)