Bradford, G., & Etheridge, S. (1821). State prisons and the penitentiary system vindicated,: With observations on managing and conducting these institutions; drawn principally from experience. : Also, some particular remarks and documents relating to the Massachusetts State Prison. [Charlestown, Mass.]: S. Etheridge,--Charlestown..

Bradford, Gamaliel, and Samuel Etheridge. State Prisons and the Penitentiary System Vindicated,: With Observations On Managing and Conducting These Institutions; Drawn Principally From Experience. : Also, Some Particular Remarks and Documents Relating to the Massachusetts State Prison. [Charlestown, Mass.]: S. Etheridge,--Charlestown., 1821.

Bradford, Gamaliel, and Samuel Etheridge. State Prisons and the Penitentiary System Vindicated,: With Observations On Managing and Conducting These Institutions; Drawn Principally From Experience. : Also, Some Particular Remarks and Documents Relating to the Massachusetts State Prison. [Charlestown, Mass.]: S. Etheridge,--Charlestown., 1821.