Columbia subject headings:
Authors, Swiss--20th century--Biography.
Theater--Europe, German-speaking--History--20th century.
Theatrical producers and directors--Switzerland--Biography.
Wälterlin, Oskar, 1895-1961.
Harvard subject headings:
Authors, Swiss--20th century--Biography
Theater--Europe, German-speaking--History--20th century.
Theatrical producers and directors--Switzerland--Biography.
Wälterlin, Oskar, 1895-1961.
Princeton subject headings:
Authors, Swiss--20th century--Biography.
Theater--Europe, German-speaking--History--20th century.
Theatrical producers and directors--Switzerland--Biography.
Wälterlin, Oskar, 1895-1961.