Horn, G. (1996). European socialists respond to fascism: Ideology, activism, and contingency in the 1930s. Oxford University Press.

Horn, Gerd-Rainer. European Socialists Respond to Fascism: Ideology, Activism, and Contingency in the 1930s. New York: Oxford University Press, 1996.

Horn, Gerd-Rainer. European Socialists Respond to Fascism: Ideology, Activism, and Contingency in the 1930s. Oxford University Press, 1996.