Columbia subject headings:
Antigone (Mythological character)--In literature--Congresses.
Ethics in literature--Congresses.
Politics in literature--Congresses.
Harvard subject headings:
Antigone (Mythological character)--In literature--Congresses.
Ethics in literature--Congresses.
Politics in literature--Congresses.
Princeton subject headings:
Antigone (Mythological character)--In literature.
Ethics in literature--Congresses.
Politics in literature--Congresses.