Columbia subject headings:
Catharsis--Early works to 1800.
Epic poetry--History and criticism--Early works to 1800.
Poetry--History and criticism--Theory, etc.--Early works to 1800.
Tragedy--History and criticism--Early works to 1800.
Tragedy--Philosophy--Early works to 1800.
Harvard subject headings:
Catharsis--Early works to 1800.
Epic poetry--History and criticism--Early works to 1800.
Poetry--History and criticism--Theory, etc.--Early works to 1800.
Tragedy--History and criticism--Early works to 1800.
Tragedy--Philosophy--Early works to 1800.
Princeton subject headings:
Catharsis--Early works to 1800.
Epic poetry--History and criticism--Early works to 1800.
Poetry--History and criticism--Theory, etc.--Early works to 1800.
Tragedy--History and criticism--Early works to 1800.
Tragedy--Philosophy--Early works to 1800.