Columbia subject headings:
Philosophy, Ancient--History and criticism.
Plato.
Plato. Dialogues.
Socrates.
Sophists (Greek philosophy)
Harvard subject headings:
Philosophy, Ancient--History and criticism.
Plato
Plato. Dialogues.
Socrates.
Sophists (Greek philosophy)
Princeton subject headings:
Philosophy, Ancient--History and criticism.
Plato.
Plato. Dialogues.
Socrates.
Sophists (Greek philosophy)