Columbia subject headings:
Literature--History and criticism.
Theater--History.
Harvard subject headings:
Drama--20th century--History and criticism
Literature, Modern
Literature, Modern--History and criticism
Polish drama--20th century--History and criticism.
Polish essays.
Polish literature--History and criticism.
Theater--Poland--History--20th century.
Princeton subject headings:
Drama--History and criticism.
Literature.
Theater--History.