Columbia subject headings:
Germany. Geheime Staatspolizei--History.
National socialism.
Würzburg (Germany)--History.
Harvard subject headings:
Princeton subject headings:
Informers--Germany--Mainfranken--20th century.
Mainfranken (Germany)--Politics and government--20th century.
National socialism--Germany--Mainfranken.
Political prisoners--Germany--Mainfranken--History--20th century.