Poppel, S. M. (1972). Salman Schocken and the Schocken Verlag: Stephen M. Poppel. Year Book / Leo Baeck Institute.
Citazione stile Chigago Style (17a edizione)Poppel, Stephen M. "Salman Schocken and the Schocken Verlag: Stephen M. Poppel." Year Book / Leo Baeck Institute 1972.
Citatione MLA (8a ed.)Poppel, Stephen M. "Salman Schocken and the Schocken Verlag: Stephen M. Poppel." Year Book / Leo Baeck Institute, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.