Columbia subject headings:
Harvard subject headings:
Juvenile delinquency--Europe--Prevention.
Juvenile delinquency--Portugal--Prevention.
Juvenile delinquents--Rehabilitation--Europe.
Juvenile delinquents--Rehabilitation--Portugal.
Juvenile justice, Administration of--Europe.
Juvenile justice, Administration of--Portugal.
Princeton subject headings:
Juvenile delinquency--Europe--Prevention.
Juvenile delinquency--Portugal--Prevention.
Juvenile delinquents--Rehabilitation--Europe.
Juvenile delinquents--Rehabilitation--Portugal.
Juvenile justice, Administration of--Europe.
Juvenile justice, Administration of--Portugal.