Columbia subject headings:
Czechoslovakia--History--Bibliography.
Underground literature--Publishing--Czechoslovakia--History--20th century.
Harvard subject headings:
Czech Republic--History--Bibliography.
Czechoslovakia--History--Bibliography.
Slovakia--History--Bibliography.
Underground literature--Czech Republic--Bibliography.
Underground literature--Publishing--Czechoslovakia--History--20th century.
Princeton subject headings:
Czechoslovakia--History--Bibliography.
Underground literature--Publishing--Czechoslovakia--History--20th century.