Columbia subject headings:
Bible. Gospels--Commentaries.
Bible. Gospels. Syriac--Versions--Diatessaron.
Harvard subject headings:
Bible. Gospels--Commentaries.
Bible. Gospels. Syriac--Versions--Diatessaron.
Princeton subject headings:
Bible. Gospels--Commentaries.
Bible. New Testament. Gospels. Syriac Diatessaron.