Efron, J. M. (2007). The Most Cruel Cut of All?: The campaign against Jewish Ritual Slaughter in Fin-de-Siècle Switzerland and Germany / John M. Efron. Year Book / Leo Baeck Institute.

Efron, John M. "The Most Cruel Cut of All?: The Campaign Against Jewish Ritual Slaughter in Fin-de-Siècle Switzerland and Germany / John M. Efron." Year Book / Leo Baeck Institute 2007.

Efron, John M. "The Most Cruel Cut of All?: The Campaign Against Jewish Ritual Slaughter in Fin-de-Siècle Switzerland and Germany / John M. Efron." Year Book / Leo Baeck Institute, 2007.