Columbia subject headings:
Arabic poetry--Saudi Arabia--Najd.
Pearl divers--Saudi Arabia--Najd.
Pearl industry and trade--Saudi Arabia--History.
Harvard subject headings:
Arabic poetry--Saudi Arabia--Najd.
Pearl divers--Saudi Arabia--Najd.
Pearl industry and trade--Saudi Arabia--History.
Princeton subject headings:
Arabic poetry--Saudi Arabia--Najd.
Pearl divers--Saudi Arabia--Najd.
Pearl industry and trade--Saudi Arabia--History.