Columbia subject headings:
Coptic Church--History--Congresses.
Coptic philology--Congresses.
Copts--History--Congresses.
Egypt--Church history--Congresses.
Gnosticism--Congresses.
Harvard subject headings:
Coptic philology--Congresses.
Copts--Congresses.
Princeton subject headings:
Coptic philology--Congresses.
Copts--Congresses.