Columbia subject headings:
Harvard subject headings:
Brockelmann, Carl, 1868-1956
Hitti, Philip K. (Philip Khuri), 1886-1978
Islamic Empire--Historiography.
Princeton subject headings:
Brockelmann, Carl, 1868-1956.
Hitti, Philip K. (Philip Khuri), 1886-1978.
Islamic Empire--Historiography.