Columbia subject headings:
Harvard subject headings:
Crime--Germany--History--Congresses.
Criminal justice, Administration of--Germany--History--Congresses.
Criminology--Germany--History--Congresses.
Princeton subject headings:
Crime--Europe--History.
Crime--Germany--History.
Criminal justice, Administration of--Europe--History.
Criminal justice, Administration of--Germany--History.
Criminology--Europe--History.
Criminology--Germany--History.