Columbia subject headings:
Criminals--Rehabilitation--United States.
Prison industries--Law and legislation--United States.
Prisoners--Legal status, laws, etc.--United States.
Harvard subject headings:
Criminals--Rehabilitation--United States
Prison industries--Law and legislation--United States.
Prisoners--Legal status, laws, etc.--United States
Princeton subject headings:
Criminals--Rehabilitation--United States.
Prison industries--Law and legislation--United States.
Prisoners--Legal status, laws, etc.--United States.