Columbia subject headings:
Crime--Germany--Koblenz.
Criminals--Germany--Koblenz.
Homicide--Germany--Koblenz.
Murder--Germany--Koblenz.
Harvard subject headings:
Crime--Germany--Koblenz.
Criminals--Germany--Koblenz.
Homicide--Germany--Koblenz.
Murder--Germany--Koblenz.
Princeton subject headings: