Columbia subject headings:
Drama--19th century--History and criticism.
Drama--20th century--History and criticism.
European drama--19th century--History and criticism.
European drama--20th century--History and criticism.
Harvard subject headings:
European drama--19th century--History and criticism.
European drama--20th century--History and criticism.
Princeton subject headings:
European drama--19th century--History and criticism.
European drama--20th century--History and criticism.