Columbia subject headings:
Egypt--Economic conditions--332 B.C.-640 A.D.
Egypt--Economic conditions--To 332 B.C.
Harvard subject headings:
Egypt--Economic conditions--332 B.C.-640 A.D.
Egypt--Economic conditions--To 332 B.C.
Princeton subject headings:
Egypt--Economic conditions--332 B.C.-640 A.D.
Egypt--Economic conditions--To 332 B.C.