Columbia subject headings:
Criticism--Soviet Union--History--20th century.
Russian literature--19th century--History and criticism.
Russian literature--20th century--History and criticism.
Harvard subject headings:
Criticism--Soviet Union--History--20th century.
Russian literature--19th century--History and criticism
Russian literature--20th century--History and criticism
Princeton subject headings:
Criticism--Soviet Union--History--20th century.
Russian literature--19th century--History and criticism.
Russian literature--20th century--History and criticism.