Columbia subject headings:
Literature, Ancient--History and criticism.
Literature, Ancient--Philosophy.
Literature, Modern--History and criticism.
Literature, Modern--Philosophy.
Harvard subject headings:
Literature, Ancient--History and criticism.
Literature, Ancient--Philosophy.
Literature, Modern--History and criticism
Literature, Modern--Philosophy.
Princeton subject headings:
Literature, Ancient--History and criticism.
Literature, Ancient--Philosophy.
Literature, Modern--History and criticism.
Literature, Modern--Philosophy.