Columbia subject headings:
Jewish ethics.
Mishnah. Avot--Criticism, interpretation, etc.
Talmud. Minor tractates. Avot de-Rabbi Nathan--Criticism, interpretation, etc.
Harvard subject headings:
Jewish ethics.
Mishnah. Avot--Criticism, interpretation, etc.
Talmud. Minor tractates. Avot de-Rabbi Nathan.
Princeton subject headings:
Jewish ethics.
Mishnah. Avot--Criticism, interpretation, etc.
Talmud. Minor tractates. Avot de-Rabbi Nathan