Londres: Victor Gollancz, 1933.
Autor: archivo obrero
Eunice M. Schuster. Native American Anarchism.
Northampton, Mass.: Dept. of History of Smith College, 1932.
Marjorie Clark. A History of the French Labor Movement (1910-1928).
Berkeley: University of California Press, 1930.
John T. Ward, ed. Popular Movements c. 1830–1850.
London: Macmillan / New York: St. Martin's Press, 1970.