Columbia subject headings:
American drama--20th century--History and criticism.
English drama--20th century--History and criticism.
Shakespeare, William, 1564-1616--Stage history--1950-
Theater--Great Britain--History--20th century.
Theater--North America--History--20th century.
Harvard subject headings:
American drama--History and criticism
English drama--History and criticism
Shakespeare, William, 1564-1616--Stage history--1950-.
Theater--Great Britain--History--20th century
Theater--United States--History--20th century
Princeton subject headings:
American drama--20th century--History and criticism.
English drama--20th century--History and criticism.
Shakespeare, William, 1564-1616--Stage history--1950-.
Theater--Great Britain--History--20th century.
Theater--North America--History--20th century.