Columbia subject headings:
Communism and literature--Poland.
Polish literature--20th century--History and criticism.
Political persecution--Poland.
Underground literature--Poland--History and criticism.
Harvard subject headings:
Authors, Polish--20th century--Political and social views.
Communism and literature--Poland.
Poland. Służba Bezpieczeństwa.
Poland. Urząd Bezpieczeństwa.
Secret service--Poland.
Princeton subject headings: