RT Book T1 At hard labor: inmate labor at the Colorado State Penitentiary, 1871 - 1940 T2 American university studies / 9 JF American university studies / 9 A1 MacGinn, Elinor M. LA English PP New York u.a. PB Lang YR 1993 UL https://krimdok.uni-tuebingen.de/Record/272382701 NO Literaturverz. S. 163 - 170 CN HV8929.C62 SN 0820420972 K1 Convict labor : Colorado : History K1 Prison industries : Colorado : History K1 Colorado State Penitentiary : History K1 Prisons : Colorado : History K1 Canon City, Colo. : Colorado State Penitentiary : Geschichte K1 Canon City, Colo. : Colorado State Penitentiary : Strafgefangener : Arbeit : Geschichte 1871-1940