Columbia subject headings:
Gnosticism.
Nag Hammadi codices.
Harvard subject headings:
Bible. New Testament--Criticism, interpretation, etc.--Congresses.
Christianity and other religions--Roman--Congresses.
Christianity--Origin--Congresses.
Church history--Primitive and early church, ca. 30-600--Congresses.
Gnostic literature--Relation to the New Testament--Congresses.
Gnosticism--Congresses
Nag Hammadi codices--Congresses.
Rome--Religion--Congresses.
Princeton subject headings:
Gnosticism.
Nag Hammadi codices.