Columbia subject headings:
Bible. Epistle of John, 1st--Concordances, Greek.
Bible. Epistle of John, 2nd--Concordances, Greek.
Bible. Epistle of John, 3rd--Concordances, Greek.
Bible. Jude--Concordances, Greek.
Harvard subject headings:
Bible. John, I--Concordances, Greek.
Bible. John, II--Concordances, Greek.
Bible. John, III--Concordances, Greek.
Bible. Jude--Concordances, Greek.
Princeton subject headings:
Bible. Epistles of John--Concordances, Greek.
Bible. Jude--Concordances, Greek.