Columbia subject headings:
Africa, North--Social conditions--Bibliography.
Middle East--Social conditions--Bibliography.
Social classes--Africa, North--Bibliography.
Social classes--Middle East--Bibliography.
Harvard subject headings:
Africa, North--Social conditions--Bibliography.
Middle East--Social conditions--Bibliography.
Social classes--Africa, North--Bibliography.
Social classes--Middle East--Bibliography.
Princeton subject headings:
Africa, North--Social conditions--Bibliography.
Middle East--Social conditions--Bibliography.
Social classes--Africa, North--Bibliography.
Social classes--Middle East--Bibliography.