Columbia subject headings:
Harvard subject headings:
Prisons--England
Prisons--Sweden.
Probation officers--In-service training--England.
Probation officers--In-service training--Sweden.
Probation--England.
Probation--Sweden.
Princeton subject headings:
Prisons--England.
Prisons--Sweden.
Probation officers--In-service training--England.
Probation officers--In-service training--Sweden.
Probation--England.
Probation--Sweden.