Columbia subject headings:
American drama--19th century--History and criticism.
English drama--19th century--History and criticism.
Theater--Great Britain--History--19th century.
Theater--United States--History--19th century.
Harvard subject headings:
American drama--19th century--History and criticism
English drama--19th century--History and criticism
Theater--Great Britain--History--19th century
Theater--United States--History--19th century.
Princeton subject headings:
American drama--19th century--History and criticism.
English drama--19th century--History and criticism.
Theater--Great Britain--History--19th century.
Theater--United States--History--19th century.