Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Biography
Germany. Geheime Staatspolizei
World War, 1939-1945--Prisoners and prisons, Polish.
World War, 1939-1945--Underground movements--Poland--Biography.
Princeton subject headings:
World War, 1939-1945--Poland--Graffiti.
World War, 1939-1945--Poland--Prisoners and prisons, German.