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- E-bookCriminal SociologyEnrico Ferri
- E-bookCriminal SociologyEnrico Ferri
- E-bookSocialism and Modern Science (Darwin, Spencer, Marx)Robert Rives La Monte
- E-bookSocialismo y ciencia positiva (Darwin-Spencer-Marx)Enrico Ferri
- E-bookLes criminels dans l'art et la littératureEnrico Ferri
- E-bookCriminal SociologyEnrico Ferri
- E-bookSocialism and Modern Science (Darwin, Spencer, Marx)Enrico Ferri
- E-bookThe Positive School of Criminology Three Lectures Given at the University of Naples, Italy on April 22, 23 and 24, 1901Enrico Ferri
- E-bookSocialism and Modern Science (Darwin, Spencer, Marx)Enrico Ferri