Columbia subject headings:
Juvenile delinquency--Czechoslovakia.
Juvenile delinquency--Germany (West)
Juvenile delinquency--Hungary.
Juvenile delinquency--India.
Harvard subject headings:
Juvenile delinquency--Czechoslovakia.
Juvenile delinquency--Germany (West)
Juvenile delinquency--Hungary.
Juvenile delinquency--India
Princeton subject headings: