At hard labor : inmate labor at the Colorado State Penitentiary, 1871-1940 - McGinn, Elinor Myers, 1923- (New York : P. Lang, 1993)
Includes bibliographical references (p. [163]-171).
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Keywords: Colorado State Penitentiary -- History; Convict labor -- Colorado -- History; Prison industries -- Colorado -- History; Prisons -- History -- Colorado