Columbia subject headings:
Church of the East--History.
Harvard subject headings:
Nestorian Church--Biography
Nestorian Church--History.
Nestorians--Biography.
Nestorians--History.
Patriarchs and patriarchate--Biography.
Patriarchs and patriarchate--History.
Syriac Christians--Islamic Empire--Biography.
Syriac Christians--Islamic Empire--History.
Princeton subject headings: