Columbia subject headings:
Apocryphal Gospels--Criticism, Textual.
Bible and tradition.
Bible. Gospels--Canon.
Bible. Gospels--Criticism, Textual.
Harvard subject headings:
Apocryphal books (New Testament)--Criticism, Textual.
Bible and tradition.
Bible. Gospels--Canon.
Bible. Gospels--Criticism, Textual.
Princeton subject headings: