Columbia subject headings:
Poland--Intellectual life--20th century.
Poland--Relations--Soviet Union.
Polish poetry--20th century--History and criticism.
Soviet Union--In literature.
Soviet Union--Relations--Poland.
Harvard subject headings:
Poland--Intellectual life--20th century
Polish literature--Political aspects.
Polish poetry--20th century--History and criticism.
Socialism and literature--Poland--History.
Princeton subject headings: