Columbia subject headings:
Indeterminate sentences--England--Case studies.
Indeterminate sentences--Wales--Case studies.
Parole--England--Case studies.
Parole--Wales--Case studies.
Harvard subject headings:
Indeterminate sentences--England--Case studies.
Indeterminate sentences--Wales--Case studies.
Parole--England--Case studies.
Parole--Wales--Case studies.
Princeton subject headings:
Indeterminate sentences--England--Case studies.
Indeterminate sentences--Wales--Case studies.
Parole--England--Case studies.
Parole--Wales--Case studies.