Columbia subject headings:
English drama--20th century--History and criticism.
Harvard subject headings:
English drama--20th century--History and criticism
Galsworthy, John, 1867-1933--Criticism and interpretation.
Granville-Barker, Harley, 1877-1946--Criticism and interpretation.
Hankin, St. John--Criticism and interpretation.
Princeton subject headings:
English drama--20th century--History and criticism.