Columbia subject headings:
John, the Apostle, Saint.
Harvard subject headings:
Bible. Ephesians--Criticism, interpretation, etc.--Congresses.
Bible. Epistles of John--Criticism, interpretation, etc.--Congresses.
Bible. John--Criticism, interpretation, etc.--Congresses.
Bible. Revelation--Criticism, interpretation, etc.--Congresses.
Ephesus (Extinct city)--Congresses.
John, the Apostle, Saint--Congresses.
Princeton subject headings: