Columbia subject headings:
Tribes--Saudi Arabia--Hejaz--History.
Tribes--Saudi Arabia--History.
Tribes--Saudi Arabia--Najd--History.
Harvard subject headings:
Hejaz (Saudi Arabia)--Genealogy.
Hejaz (Saudi Arabia)--History.
Najd (Saudi Arabia)--Genealogy.
Najd (Saudi Arabia)--History.
Tribes--Saudi Arabia--History.
Princeton subject headings:
Tribes--Saudi Arabia--Hejaz--History.
Tribes--Saudi Arabia--History.
Tribes--Saudi Arabia--Najd--History.