Caracas: Tiempo Nuevo, 1971.
Categoría: BIBLIOTECA
J. L. Hammond – Barbara Hammond. The Age of the Chartists, 1832-1854.
Londres: Longmans, Green and Co., 1930.
Henry Weisser. British Working-Class Movements and Europe, 1815-48.
Manchester: Manchester University Press, 1975.
Public Education in the Russian Socialistic Federation of Soviet Republics.
Moscú: R.S.F.S.R. People's Commissariat of Education, 1926.