Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Germany--Hohenzollern.
Anti-Nazi movement--Germany--Württemberg.
Germany. Geheime Staatspolizei
Political persecution--Germany--20th century.
Secret service--Germany--Hohenzollern--History--20th century.
Secret service--Germany--Württemberg--History--20th century.
Princeton subject headings:
Germany. Geheime Staatspolizei
National socialism--Germany--Hohenzollern.
National socialism--Germany--Württemberg.
Political persecution--Germany--Hohenzollern.
Political persecution--Germany--Württemberg.