Columbia subject headings:
Syriac Christians--Iran--History.
Syriac Christians--Iraq--History.
Harvard subject headings:
Christians--Iran--History.
Christians--Iraq--History.
Iran--Church history.
Iraq--Church history.
Syriac Christians--Iran--History.
Syriac Christians--Iraq--History.
Princeton subject headings:
Syriac Christians--Iran--History--Collected works.
Syriac Christians--Iraq--History--Collected works.