Columbia subject headings:
Yamāmah (Saudi Arabia)--Economic conditions.
Yamāmah (Saudi Arabia)--History.
Yamāmah (Saudi Arabia)--Social conditions.
Harvard subject headings:
Yamāmah (Saudi Arabia)--Economic conditions.
Yamāmah (Saudi Arabia)--History.
Yamāmah (Saudi Arabia)--Social conditions.
Princeton subject headings:
Yamāmah (Saudi Arabia)--Economic conditions.
Yamāmah (Saudi Arabia)--History.
Yamāmah (Saudi Arabia)--Social conditions.