Columbia subject headings:
Harvard subject headings:
Bible. Epistle of John, 2nd--Criticism, interpretation, etc.
Bible. Epistle of John, 3rd--Criticism, interpretation, etc.
Princeton subject headings:
Bible. New Testament. Epistles of John, 2nd--Criticism, interpretation, etc.
Bible. New Testament. Epistles of John, 3rd--Criticism, interpretation, etc.