Columbia subject headings:
Harvard subject headings:
Drama--20th century--History and criticism
Drama--Political aspects.
Greek drama (Tragedy)--History and criticism.
Human sacrifice in literature.
Human sacrifice.
Politics and literature.
Violence in literature.
Princeton subject headings:
Drama--20th century--History and criticism.
Drama--Political aspects.
Greek drama (Tragedy)--History and criticism.
Human sacrifice in literature.
Human sacrifice.
Politics and literature.
Violence in literature.