Παραπομπή APA

Barnes, H. E. (1927). The Evolution of Penology in Pennsylvania: A study in American Social History. Indianapolis: The Bobbs-Merrill Company.

Παραπομπή Chicago Style

Barnes, Harry Elmer. The Evolution of Penology in Pennsylvania: A Study in American Social History. Indianapolis: The Bobbs-Merrill Company, 1927.

Παραπομπή MLA

Barnes, Harry Elmer. The Evolution of Penology in Pennsylvania: A Study in American Social History. Indianapolis: The Bobbs-Merrill Company, 1927.

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