Columbia subject headings:
Harvard subject headings:
Corrections--Great Britain--History--20th century.
Criminals--Rehabilitation--Great Britain--History--20th century.
Imprisonment--Great Britain--History--20th century.
Princeton subject headings:
Corrections--Great Britain--History--20th century.
Criminals--Rehabilitation--Great Britain--History--20th century.
Imprisonment--Great Britain--History--20th century.