H.C. Peterson – Gilbert Fite. Opponents of War, 1917-1918.

Madison: University of Wisconsin Press, 1957.

Kent Kreuter – Gretchen Kreuter. An American Dissenter: The Life of Algie Martin Simons 1870-1950.

Lexington: University of Kentucky Press, 1969.

Anson Rabinbach, ed. The Austrian Socialist Experiment. Social Democracy and Austromarxism, 1918-1934.

Boulder: Westview Press, 1985.

Karl Marx – Friedrich Engels. On Religion.

Biblioteca / 1950-1959  2000-2009 Karl Marx – Friedrich Engels. On Religion. Moscú: Foreign Languages Publishing House,…

Tristram Hunt. The Frock-Coated Communist. The Revolutionary Life of Friedrich Engels.

Biblioteca / 2000-2009 Tristram Hunt. The Frock-Coated Communist. The Revolutionary Life of Friedrich Engels. Londres: Allen…

Alexander De Grand. The Italian Left in the Twentieth Century. A History of the Socialist and Communist Parties.

Biblioteca / 1980-1989 Alexander De Grand. The Italian Left in the Twentieth Century. A History of…

James E. Miller. From Elite to Mass Politics. Italian Socialism in the Giolittian Era, 1900-1914.

Biblioteca / 1990-1999 James Edward Miller. From Elite to Mass Politics. Italian Socialism in the Giolittian…

Manuel Contreras. El PSOE en la II República: organización e ideología.

Madrid: Centro de Investigaciones Sociológicas, 1981.

Samuel Bernstein. Auguste Blanqui.

París: Maspero, 1970.

Neil Stewart. Blanqui.

Londres: Victor Gollancz, 1939.