Columbia subject headings:
Russian drama--20th century--History and criticism.
Theater--Soviet Union--History--20th century--Diaries.
Theater--Soviet Union--History--20th century.
Harvard subject headings:
Russian drama--20th century--History and criticism.
Theater--Soviet Union--History--20th century--Diaries.
Theater--Soviet Union--History--20th century.
Princeton subject headings:
Russian drama--20th century--History and criticism.
Theater--Soviet Union--History--20th century.