Columbia subject headings:
Harvard subject headings:
Aristotle--Contributions in concept of the tragic.
Aristotle. Poetics.
Greek drama (Tragedy)--History and criticism--Theory, etc.
Sophocles. Oedipus Rex.
Tragic, The.
Princeton subject headings:
Aristotle. Poetics.
Sophocles. Oedipus Rex.
Tragedy--History and criticism.