"Treasury of the Christian Faith: An Encyclopedic Handbook of the Range and Witness of Christianity". Book by Stanley Irving Stuber, Thomas Curtis Clark, Association Press, 1949.
Albert Einstein (2013). “Einstein on Politics: His Private Thoughts and Public Stands on Nationalism, Zionism, War, Peace, and the Bomb”, p.230, Princeton University Press
Robert N. Goldman, Albert Einstein (1997). “Einstein's God: Albert Einstein's Quest as a Scientist and as a Jew to Replace a Forsaken God”, Jason Aronson Incorporated