(1965). Reflections on Spengler. Year Book / Leo Baeck Institute.
Cita Chicago (17th ed.)"Reflections on Spengler." Year Book / Leo Baeck Institute 1965.
Cita MLA (8th ed.)"Reflections on Spengler." Year Book / Leo Baeck Institute, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.