Columbia subject headings:
Historians--Islamic Empire--Biography.
Islamic Empire--Historiography--Congresses.
Qurʼan--Commentaries--History and criticism--Congresses.
Qurʼanic scholars--Islamic Empire--Biography.
Ṭabarī, 838?-923--Congresses.
Harvard subject headings:
Historians--Islamic Empire--Biography
Islamic Empire--Historiography--Congresses.
Qurʼan--Commentaries--History and criticism--Congresses.
Qurʼanic scholars--Islamic Empire--Biography.
Ṭabarī, 838?-923--Congresses.
Princeton subject headings: