↑Fritzsche, Peter. Germans into Nazis. Cambridge, Mass.: Harvard University Press, 1998.
↑Kele, Max H. Nazis and Workers: National Socialist Appeals to German Labor, 1919–1933. Chapel Hill: The University of North Carolina Press, 1972.
↑Payne, Stanley G. A History of Fascism, 1914–45. Madison, WI: University of Wisconsin Press, 1995.
↑Stanley G. Payne. A History of Fascism, 1914–1945. Madison, Wisconsin, USA: University of Wisconsin Press, 1995. P. 601. (Page shows list of various "National Socialist" parties outside of Germany).
↑Neocleous, Mark. Fascism. Minneapolis, Minnesota, USA: University of Minnesota Press, 1997. p. 23.
↑Thomas D. Grant. Stormtroopers and Crisis in the Nazi Movement: Activism, Ideology and Dissolution. London, England, UK; New York, New York, USA: Routledge, 2004. pp. 30-34, 44.
↑Otis C. Mitchell. Hitler's Stormtroopers and the attack on the German Republic, 1919-1933. Jefferson, North Carolina, USA: McFarland & Company, Inc., 2008. p. 47.
↑Kuntz, Dieter (2011), "Hitler and the functioning of the Third Reich", The Routledge History of the Holocaust, Routledge, p. 75