Columbia subject headings:
Czechoslovakia--History--1938-1945.
Germany. Geheime Staatspolizei--History.
Terrorism--Czechoslovakia.
World War, 1939-1945--Czechoslovakia.
Harvard subject headings:
Czechoslovakia--History--1938-1945.
Germany. Geheime Staatspolizei
World War, 1939-1945--Underground movements--Czechoslovakia.
Princeton subject headings: